Read PhotoCheatSheet.xls text version

Available Light

main reference tables

100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 1 1.4 2 2.8 4 5.6 8 11 16 22 32 1 1.4 2 2.8 4 5.6 8 11 16 22 32 32 200 400 800 ISO vs f/stop 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 1s -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 1/2s -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1/4s -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 1/8s -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 1/15s -1 0 1 2 3 4 5 6 7 8 9 10 11 12 1/30s 0 1 2 3 4 5 6 7 8 9 10 11 12 13

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com Shutter Speed vs Exposure Value Measured at ISO 100 (EV 100) 1/60s 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1/125s 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1/250s 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1/500s 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1/1000s 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1/2000s 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1/4000s 7 8 9 10 11 12 13 14 15 16 17 18 19 20

32 EV 15 - Direct and Hazy sunlight

9 10 11 12 13 EV 10 - Overcast Day in Boston, London, Paris

14 15 16 EV 5 - Home Interiors at Night

17 18 19 20 21 EV 0 - Dim Ambient Artifical Light at Night

Sun Altitude vs Scene Details

Minimum Hand Held Shutter -- Adjusted for Resolution -- Based on Doug Criner's Formulae www.enginova.com

Sensor Classification lp/mm 113 103 93 85 68 84 78 70 101 mega 18 15 12 10 10 24 21 16 10 17mm 28mm 50mm 70mm 100mm 135mm 200mm 300mm 400mm

Sun Alt° Shadow 01° 03° 06° 11° 22° 45° 65° 80° 55 20 10 5.0 2.5 1.0 0.5 0.2

EV100 7~9 8~10 9~11 10~12 11~13 12~14 12~15 13~15

Canon / Nikon / Sony (APS-C) Canon / Nikon / Sony (APS-C) Canon / Nikon / Sony (APS-C) Canon / Nikon / Sony (APS-C) Canon 1D (APS-H) Full Frame (35mm) Full Frame (35mm) Full Frame (35mm) Olympus 4/3

1/30 1/30 1/30 1/25 1/20 1/25 1/25 1/20 1/30

1/60 1/50 1/50 1/40 1/30 1/40 1/40 1/30 1/50

1/100 1/100 1/80 1/80 1/60 1/80 1/60 1/60 1/100

1/125 1/125 1/125 1/100 1/80 1/100 1/100 1/80 1/125

1/200 1/200 1/160 1/160 1/125 1/160 1/125 1/125 1/200

1/250 1/250 1/250 1/200 1/160 1/200 1/200 1/160 1/250

1/400 1/400 1/320 1/320 1/250 1/320 1/250 1/250 1/400

1/640 1/500 1/500 1/500 1/400 1/500 1/400 1/400 1/500

1/800 1/800 1/640 1/640 1/500 1/640 1/500 1/500 1/800

www.LFphoto.info/sunmooncalc

CUT ABOVE DOTTED LINE INSTRUCTIONS Please print specific pages of this document double-sided to create 1/2 page reference cards for your camera bag. For maximum strength, either print on light paper and laminate or a color laser printer with cardstock paper (laser printer toner is water resistant). * Please refer to "Fred Parker's Ultimate Exposure Computer" to learn how to use the Exposure Value table www.fredparker.com/ultexp1.htm Please note EV 100 refers to a scene's EV value when measured at ISO 100 with a light meter. e.g. EV15 is the scene's EV at ISO 100. Further typical EV 100 scene values can be found on the next page. * The "Sun Altitude Table" indicates the sun's altitude above the horizon (Alt) in degrees, it's shadow factor (Shadow), and approximate scene exposure value (EV 100). The Altitude can be measured with a clinometer and calculated with free software at the following website www.LFphoto.info/sunmooncalc The shadow factor indicates how long the shadows are compared to a subject; where 1.0 is as long as the subject is tall. The scene's derived EV 100 is based on the equations for 'Diffused Skylight' with a two stop swing for cloud cover. Direct sunlight is always EV 15 once the sun has risen sufficiently. Please see this website for more information: www.squ1.org/wiki/Design_Sky * The "Minimum Hand Held Shutter Speed" is intended for people who would like critically sharp digital images - based on the work by Doug Criner and adjusted for digital resolution. www.enginova.com/Minimum%20Shutter%20Speed.htm For comments and suggestions please email [email protected] or visit my blog at www.night-ray.com I am keen to link anyone who blogs a tutorial on using this cheat sheet, please contact me at the address above. This work is Copyright with All Rights Reserved by Gordon McKinney. VERSION HISTORY 1.90 - Added Canon 7D 1.89 - Alien Bees & White Lightning, thx to A.R.Berrones 1.88 - Extended range of Photogenic w/s power 1.87 - Changed sensor class for 1.5/1.6 cameras 1.86 - Added Sony A900, 24mp camera 1.85 - Canon 50D, increasing handheld 14mp to 15mp 1.84 - Minor changes strobe text formatting 1.83 - Added Photogenic Monoblock Guide Numbers 1.82 - Added Sony A350, 14 megapixel APS-C 1.81 - Added Canon 1Ds mkIII, 21mp. Note on Sunny 16. 1.80 - Sun Table simplifed and instructions enhanced. 1.78 - Updated instructions. 1.76 - Added a new page with typical scene exposures. 1.75 - Integrated detailed feedback from Jeff Conrad. 1.71 - Trivial layout correction. 1.70 - Added 285HV, SB-80DX, Sunpak 383 Super. 1.67 - Estimated umbrella GNs for consumer speedlites. 1.66 - Added Olympus FL-36 and FL-50. 1.65 - Added 580EX II custom functions. 1.63 - Added SB-600 and 430EX speedlites. 1.62 - Added Olympus 10 mega pixel handheld shake. 1.61 - Updated instructions with links to further resources. 1.60 - Added silver and satin umbrella guide numbers. 1.58 - Meters and Feet added to speedlites titles. 1.57 - Instructions enhanced. 1.55 - Errors and Omissions corrected. 1.50 - First draft of the new cheat sheet. Information has been simplified, larger font for easy reading, and averaged speedlites guide numbers.

Available Light

Daylight

typical scene exposure values

EV100 16 15 14 13 12 12 EV100 15 14 EV100 12~14 12 9~11 EV100 15 14 13 12 Light sand or snow in full or slightly hazy sunlight (distinct shadows) Typical scene in full or slightly hazy sunlight (distinct shadows) Typical scene in hazy sunlight (soft shadows) Typical scene, cloudy bright (no shadows) Typical scene, heavy overcast Areas in open shade, clear sunlight

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com Outdoor, Artificial Light Neon and other bright signs Night sports Fires and burning buildings Bright street scenes Night street scenes and window displays Night vehicle traffic Fairs and amusement parks Christmas tree lights Floodlit buildings, monuments, and fountains Distant views of lighted buildings Indoor, Artificial Light Galleries Sports events, stage shows, and the like Circuses, floodlit Ice shows, floodlit Offices and work areas Home interiors Christmas tree lights Darkly Lit Church Interior Candle at 20cm EV100 9~10 9 9 8 7~8 5 7 4~5 3~5 2 EV100 8~11 8~9 8 9 7~8 5~7 4~5 3~5 2

Rainbows Clear sky background Cloudy sky background Sunsets and skylines Just before sunset At sunset Just after sunset The Moon, altitude > 40° Full Gibbous Quarter Crescent EV100: All Exposure Values (EV) are given in relation to ISO 100. e.g. when measuring a scene with a light meter set at ISO 100.

Sunny 16 Rule: This equates to direct sunlight, EV 15, approximately two hours after sunrise and two hours before sunset. Further Information: This data and a more detailed explanation can be found at the Wikipedia here http://en.wikipedia.org/wiki/Exposure_value

Daylight: Values for direct sunlight apply between approximately two hours after sunrise and two hours before sunset, and assume front lighting. As a rough general rule, decrease EV by 1 for side lighting, and decrease EV by 2 for back lighting The Moon: These values are appropriate for pictures of the Moon taken at night with a long lens or telescope, and will render the Moon as a medium tone. They will not, in general, be suitable for landscape pictures that include the Moon.

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580EX I v3.0 - CANON SPEEDLITE 580EX / 550EX / 430EX CUSTOM FUNCTIONS Custom Function Setting [0 = factory default] 580EX II 550EX 430EX # meters 0 Distance Indicator 00 feet 1 Enable FEB (Flash Exposure 0 03 01 Bracketing) auto cancel Disable 1 Normal -> Under -> Over 0 04 02 FEB Shooting Sequence Under -> Normal -> Over 1 E-TTL II and E-TTL 0 TTL 1 05 03 Metering System External Meter Auto (580EX II) 2 External Meter Manual (580EX II) 3 Power down after 60 mins Slave Auto Power Off 0 10 04 02 Timer Power down after 10 mins 1 Within 1 hour Slave Auto Power Off 0 11 05 Cancel Within 8 hours 1 Enable 0 06 05 Modeling Flash Disable 1 Enabled (DOF preview button) 0 Enabled (Test flung button) 1 02 Modeling Flash Enabled (with both buttons) 2 Disable 3 Internal + External Power Recharging /w 0 12 External Power Supply External Power Only 1 Disable Continuous Shooting 0 06 with Quick Flashing Enable 1 1/32 flash Test Button 0 07 Flash Power Full flash 1 Disable Test Button Triggers 0 Modeling Light Enable 1 Enable Reduced Frame 0 09 03 Disable Sensor Awareness 1 Enable 0 08 04 AF-Assist Beam Disable 1 Select/Set + Command Dial Auto flash 0 13 Compensation Setting Command Dial Only 1 Enable 0 01 01 Automatic Power Down Disable 1 Display Max Flash Range LCD Panel Display when 0 06 halfway shutter pressed Display Aperture 1

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01 02

03

04 05 06

07 08 09 10 11 12 13 14

3.28

multiply 3.281

11

13

15

19

29

31

37

43

50

53

57

13

10

Professional Speedlite - 580EX & SB800 - feet

average guide numbers based on combined specifications

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 Popup Nikon Canon 206 144 103 72 51 36 25 18 12 9 6 4 243 170 121 85 60 42 30 21 15 10 7 5 14mm 17mm 24mm GN15 281 196 140 98 70 49 35 24 17 12 8 6 GN19 356 249 178 124 89 62 44 31 22 15 11 7 GN29 543 380 271 190 135 95 67 47 33 23 16 11 28mm GN31 581 406 290 203 145 101 72 50 36 25 18 12

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 35mm GN37 693 485 346 242 173 121 86 60 43 30 21 15 50mm GN43 806 564 403 282 201 141 100 70 50 35 25 17 70mm GN50 937 656 468 328 234 164 117 82 58 41 29 20 80mm GN53 993 695 496 347 248 173 124 86 62 43 31 21 105mm GN57 1068 748 534 374 267 187 133 93 66 46 33 23 Umbrella 24mm Silver 243 170 121 85 60 42 30 21 15 10 7 5 Satin 187 131 93 65 46 32 23 16 11 8 5 4 2

16 22 32 Bounce - Add one (1) stop Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

3 3 4 5 8 Stofen Omni Bounce - Add two and one half (2.5) stops f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

9 11 12 14 15 17 3 High Speed Sync - Add one (1) stop plus shutter stops exceeding x-sync f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28

multiply

1

11

13

15

19

29

31

37

43

50

53

57

13

10

Professional Speedlite - 580EX & SB800 - meters

average guide numbers based on combined specifications

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 Popup Nikon Canon 62 44 31 22 15 11 7 5 3 2 1 1 74 52 37 26 18 13 9 6 4 3 2 1 14mm 17mm 24mm GN15 85 60 42 30 21 15 10 7 5 3 2 1 GN19 108 76 54 38 27 19 13 9 6 4 3 2 GN29 165 116 82 58 41 29 20 14 10 7 5 3 28mm GN31 177 124 88 62 44 31 22 15 11 7 5 3

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 35mm GN37 211 148 105 74 52 37 26 18 13 9 6 4 50mm GN43 245 172 122 86 61 43 30 21 15 10 7 5 70mm GN50 285 200 142 100 71 50 35 25 17 12 8 6 80mm GN53 302 212 151 106 75 53 37 26 18 13 9 6 105mm GN57 325 228 162 114 81 57 40 28 20 14 10 7 Umbrella 24mm Silver 74 52 37 26 18 13 9 6 4 3 2 1 Satin 57 40 28 20 14 10 7 5 3 2 1 1 0

16 22 32 Bounce - Add one (1) stop Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

1 1 1 1 2 Stofen Omni Bounce - Add two and one half (2.5) stops f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

2 3 3 4 4 5 1 High Speed Sync - Add one (1) stop plus shutter stops exceeding x-sync f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28

multiply 3.281

11

13

12

25

27

30

35

37

40

40

43

11.2108

8.62069

Consumer Speedlite - 430EX & SB600 - feet

average guide numbers based on combined specifications

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 Popup Nikon Canon 206 144 103 72 51 36 25 18 12 9 6 4 243 170 121 85 60 42 30 21 15 10 7 5 14mm 24mm 28mm GN12 224 157 112 78 56 39 28 19 14 9 7 4 GN25 468 328 234 164 117 82 58 41 29 20 14 10 GN27 506 354 253 177 126 88 63 44 31 22 15 11 35mm GN30 562 393 281 196 140 98 70 49 35 24 17 12

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 50mm GN35 656 459 328 229 164 114 82 57 41 28 20 14 70mm GN37 693 485 346 242 173 121 86 60 43 30 21 15 80mm GN40 749 524 374 262 187 131 93 65 46 32 23 16 85mm GN40 749 524 374 262 187 131 93 65 46 32 23 16 105mm GN43 806 564 403 282 201 141 100 70 50 35 25 17 Umbrella 24mm Silver 210 147 105 73 52 36 26 18 13 9 6 4 Satin 161 113 80 56 40 28 20 14 10 7 5 3 2

16 22 32 Bounce - Add one (1) stop Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

3 3 3 7 8 Stofen Omni Bounce - Add two and one half (2.5) stops f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

8 10 11 11 11 12 3 High Speed Sync - Add one (1) stop plus shutter stops exceeding x-sync f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28

multiply

1

11

13

GN12

GN25

GN27

GN30

GN35

GN37

GN40

GN40

GN43

11.2108

8.62069

Consumer Speedlite - 430EX & SB600 - meters

average guide numbers based on combined specifications

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 Popup Nikon Canon 62 44 31 22 15 11 7 5 3 2 1 1 74 52 37 26 18 13 9 6 4 3 2 1 14mm 24mm 28mm GN12 68 48 34 24 17 12 8 6 4 3 2 1 GN25 142 100 71 50 35 25 17 12 8 6 4 3 GN27 154 108 77 54 38 27 19 13 9 6 4 3 35mm GN30 171 120 85 60 42 30 21 15 10 7 5 3

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 50mm GN35 200 140 100 70 50 35 25 17 12 8 6 4 70mm GN37 211 148 105 74 52 37 26 18 13 9 6 4 80mm GN40 228 160 114 80 57 40 28 20 14 10 7 5 85mm GN40 228 160 114 80 57 40 28 20 14 10 7 5 105mm GN43 245 172 122 86 61 43 30 21 15 10 7 5 Umbrella 24mm Silver 64 44 32 22 16 11 8 5 4 2 2 1 Satin 49 34 24 17 12 8 6 4 3 2 1 1 0

16 22 32 Bounce - Add one (1) stop Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

1 1 1 2 2 Stofen Omni Bounce - Add two and one half (2.5) stops f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

2 3 3 3 3 3 1 High Speed Sync - Add one (1) stop plus shutter stops exceeding x-sync f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28

multiply 3.281

21.336

30.48

36.576 42.672

0

19

32

34

38

44

50

53

56

Strobist Speedlites - feet

strobist.blogspot.com

100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 ISO vs f/stop 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 28mm 35mm 50mm 105mm GN21 400 280 200 140 100 70 50 35 25 17 12 8 GN30 571 400 285 200 142 100 71 50 35 25 17 12 GN37 685 480 342 240 171 120 85 60 42 30 21 15 GN43 800 560 400 280 140 100 70 50 35 25 17 Vivitar 285HV 200 Nikon SB-80DX 17mm GN19 356 249 178 124 89 62 44 31 22 15 11 7

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 24mm GN32 599 419 299 209 149 104 74 52 37 26 18 13 28mm GN34 637 446 318 223 159 111 79 55 39 27 19 13 35mm GN38 712 498 356 249 178 124 89 62 44 31 22 15 11 50mm GN44 824 577 412 288 206 144 103 72 51 36 25 18 13 70mm GN50 937 656 468 328 234 164 117 82 58 41 29 20 14 85mm GN53 993 695 496 347 248 173 124 86 62 43 31 21 15 105mm GN56 1049 734 524 367 262 183 131 91 65 45 32 22 16

6 9 10 12 5 9 10 Sunpak 383 Super - Equivalent to Vivitar at 50mm, GN 37m / 120ft f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15 f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0

f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0

f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0

f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28

multiply

1

21.336

30.48

36.576 42.672

0

19

32

GN34

GN38

GN44

GN50

53

56

Strobist Speedlites - meters

strobist.blogspot.com

100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 ISO vs f/stop 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 28mm 35mm 50mm 105mm GN21 121 85 60 42 30 21 15 10 7 5 3 2 GN30 174 121 87 60 43 30 21 15 10 7 5 3 GN37 209 146 104 73 52 36 26 18 13 9 6 4 GN43 243 170 121 85 42 30 21 15 10 7 5 Vivitar 285HV 60 Nikon SB-80DX 17mm GN19 108 76 54 38 27 19 13 9 6 4 3 2

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 24mm GN32 182 128 91 64 45 32 22 16 11 8 5 4 28mm GN34 194 136 97 68 48 34 24 17 12 8 6 4 35mm GN38 217 152 108 76 54 38 27 19 13 9 6 4 3 50mm GN44 251 176 125 88 62 44 31 22 15 11 7 5 4 70mm GN50 285 200 142 100 71 50 35 25 17 12 8 6 4 85mm GN53 302 212 151 106 75 53 37 26 18 13 9 6 4 105mm GN56 320 224 160 112 80 56 40 28 20 14 10 7 5

1 2 3 3 1 2 3 Sunpak 383 Super - Equivalent to Vivitar at 50mm, GN 37m / 120ft f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15 f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0

f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0

f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0

f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28 3.28

multiply

14

20

22

26

28

32

36

0

20

28

30

36

40

45

50

Olympus 4/3 Speedlites - feet

zoom head calibrated for 4/3 focal length

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 GN14 262 183 131 91 65 45 32 22 16 11 8 5 4 GN20 374 262 187 131 93 65 46 32 23 16 11 8 5 10mm 12mm 14mm 17mm 25mm GN22 412 288 206 144 103 72 51 36 25 18 12 9 6 GN26 487 341 243 170 121 85 60 42 30 21 15 10 7 GN28 524 367 262 183 131 91 65 45 32 22 16 11 8 35mm 42mm GN32 599 419 299 209 149 104 74 52 37 26 18 13 9 GN36 674 472 337 236 Olympus FL-36 168 118 84 59 42 29 21 14 10 Olympus FL-50

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 10mm GN20 374 262 187 131 93 65 46 32 23 16 11 8 5 20mm f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 12mm GN28 524 367 262 183 131 91 65 45 32 22 16 11 8 24mm f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 14mm GN30 562 393 281 196 140 98 70 49 35 24 17 12 8 28mm f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 17mm GN36 674 472 337 236 168 118 84 59 42 29 21 14 10 35mm f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 25mm GN40 749 524 374 262 187 131 93 65 46 32 23 16 11 50mm f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 35mm GN45 843 590 421 295 210 147 105 73 52 36 26 18 13 70mm f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5 42mm GN50 937 656 468 328 234 164 117 82 58 41 29 20 14 85mm f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

11 16 22 32 type 135 / 35mm focal len Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9 Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

20mm 24mm 28mm 35mm 50mm f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 -

70mm 85mm f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

3.3 1:10

\

3.28

1

multiply

14

20

22

26

28

32

36

0

20

28

30

36

40

45

50

Olympus 4/3 Speedlites - meters

zoom head calibrated for 4/3 focal length

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 GN14 80 56 40 28 20 14 10 7 5 3 2 1 1 GN20 114 80 57 40 28 20 14 10 7 5 3 2 1 10mm 12mm 14mm 17mm 25mm GN22 125 88 62 44 31 22 15 11 7 5 3 2 2 GN26 148 104 74 52 37 26 18 13 9 6 4 3 2 GN28 160 112 80 56 40 28 20 14 10 7 5 3 2 35mm 42mm GN32 182 128 91 64 45 32 22 16 11 8 5 4 2 GN36 205 144 102 72 Olympus FL-36 51 36 25 18 12 9 6 4 3 Olympus FL-50

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 10mm GN20 114 80 57 40 28 20 14 10 7 5 3 2 1 20mm f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 12mm GN28 160 112 80 56 40 28 20 14 10 7 5 3 2 24mm f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 14mm GN30 171 120 85 60 42 30 21 15 10 7 5 3 2 28mm f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 17mm GN36 205 144 102 72 51 36 25 18 12 9 6 4 3 35mm f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 25mm GN40 228 160 114 80 57 40 28 20 14 10 7 5 3 50mm f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 35mm GN45 257 180 128 90 64 45 32 22 16 11 8 5 4 70mm f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5 42mm GN50 285 200 142 100 71 50 35 25 17 12 8 6 4 85mm f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

11 16 22 32 type 135 / 35mm focal len Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9 Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

20mm 24mm 28mm 35mm 50mm f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 -

70mm 85mm f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

3.3 1:10

3.28

multiply 3.281

11

13.333

16

18.333

22

26.6667

32

36.6667

44

52.8

62

74.4

86

AC monoblock with 6in reflector and 45in satin shoot through umbrella

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 44ws GN11 206 144 103 72 51 36 25 18 12 9 6 4 3 88ws GN13 249 174 124 87 62 43 31 21 15 10 7 5 3 125ws 176ws 250ws GN16 299 209 149 104 74 52 37 26 18 13 9 6 4 GN18 343 240 171 120 85 60 42 30 21 15 10 7 5 GN22 412 288 206 144 103 72 51 36 25 18 12 9 6 353ws GN27 499 349 249 174 124 87 62 43 31 21 15 10 7

Photogenic Strobe - feet

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 500ws GN32 599 419 299 209 149 104 74 52 37 26 18 13 9 706ws GN37 687 481 343 240 171 120 85 60 42 30 21 15 10 1000ws 1500ws 2000ws GN44 824 577 412 288 206 144 103 72 51 36 25 18 13 GN53 989 692 494 346 247 173 123 86 61 43 30 21 15 GN62 1162 813 581 406 290 203 145 101 72 50 36 25 18 3000ws GN74 1394 976 697 488 348 244 174 122 87 61 43 30 22 4000ws GN86 1612 1128 806 564 403 282 201 141 100 70 50 35 25

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 -

f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 -

f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 -

f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 -

f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 -

f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21

f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11

f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5

f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5

f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0

f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0

f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0

f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

1

multiply

1

11

13.333

16

18.333

22

26.6667

32

36.6667

44

52.8

62

74.4

86

AC monoblock with 6in reflector and 45in satin shoot through umbrella

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 44ws GN11 63 44 31 22 16 11 8 6 4 3 2 1 1 88ws GN13 76 53 38 27 19 13 10 7 5 3 2 2 1 125ws 176ws 250ws GN16 91 64 46 32 23 16 11 8 6 4 3 2 2 GN18 105 73 52 37 26 18 13 9 7 5 3 2 2 GN22 126 88 63 44 31 22 16 11 8 6 4 3 2 353ws GN27 152 107 76 53 38 27 19 13 10 7 5 3 2

Photogenic Strobe - meters

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 500ws GN32 183 128 91 64 46 32 23 16 11 8 6 4 3 706ws GN37 210 147 105 73 52 37 26 18 13 9 7 5 3 1000ws 1500ws 2000ws GN44 251 176 126 88 63 44 31 22 16 11 8 6 4 GN53 302 211 151 106 75 53 38 26 19 13 9 7 5 GN62 354 248 177 124 89 62 44 31 22 16 11 8 6 3000ws GN74 425 298 213 149 106 74 53 37 27 19 13 9 7 4000ws GN86 491 344 246 172 123 86 61 43 31 22 15 11 8

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 -

f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 -

f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 -

f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 -

f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 -

f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 -

f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21

f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15

f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11

f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5

f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5

f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0

f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0

f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0

f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5

f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

3.3 1:10

3.28

multiply 3.281

4.7432 6.6405 9.2967 13.015 18.222 25.5102 35.7143

50

70

98

AC monoblock with 7in reflector and 45in satin shoot through umbrella

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 12ws GN05 88 62 44 31 22 15 11 7 5 3 2 1 25ws GN07 124 87 62 43 31 21 15 10 7 5 3 2 50ws GN09 174 122 87 61 43 30 21 15 10 7 5 3 100ws 200ws GN13 244 170 122 85 61 42 30 21 15 10 7 5 GN18 341 239 170 119 85 59 42 29 21 14 10 7 400ws GN26 478 334 239 167 119 83 59 41 29 20 14 10

Alien Bees & White Lightning Strobe - feet

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 800ws GN36 669 468 334 234 167 117 83 58 41 29 20 14 1600ws 3200ws 6400ws GN50 937 656 468 328 234 164 117 82 58 41 29 20 GN70 1312 918 656 459 328 229 164 114 82 57 41 28 GN98 1837 1286 918 643 459 321 229 160 114 80 57 40

16 22 32 1 1 2 3 5 7 10 14 20 29 Power increases by one (1) stop with a bare 7in reflector (20mm field of view) -- and -- three (3) stops with a bare 11in reflector (35mm field of view) Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15 f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5 f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

3.3 1:10

1

multiply

1

4.7432 6.6405 9.2967 13.015 18.222 25.5102 35.7143

50

70

98

0

0

0

AC monoblock with 7in reflector and 45in satin shoot through umbrella

ISO vs f/stop 100 0.18 0.25 0.35 0.5 0.7 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 1 1.4 2 2.8 4 5.6 8 11 16 1 1.4 2 2.8 4 5.6 8 11 16 22 1 1.4 2 2.8 4 5.6 8 11 16 22 32 200 400 800 1600 3200 1 1.4 2 2.8 4 5.6 8 11 16 22 32 6400 1.4 2 2.8 4 5.6 8 11 16 22 32 12ws GN05 27 18 13 9 6 4 3 2 1 1 0 0 25ws GN07 37 26 18 13 9 6 4 3 2 1 1 0 50ws GN09 53 37 26 18 13 9 6 4 3 2 1 1 GN13 74 52 37 26 18 13 9 6 4 3 2 1

Alien Bees & White Lightning Strobe - meters

100ws 200ws GN18 104 72 52 36 26 18 13 9 6 4 3 2 400ws GN26 145 102 72 51 36 25 18 12 9 6 4 3

Photographic Cheat Sheet v1.90

© Gordon McKinney 2005-2009 - www.night-ray.com 800ws GN36 204 142 102 71 51 35 25 17 12 8 6 4 1600ws 3200ws 6400ws GN50 285 200 142 100 71 50 35 25 17 12 8 6 GN70 400 280 200 140 100 70 50 35 25 17 12 8 GN98 560 392 280 196 140 98 70 49 35 24 17 12

16 22 32 0 0 0 1 1 2 3 4 6 8 Power increases by one (1) stop with a bare 7in reflector (20mm field of view) -- and -- three (3) stops with a bare 11in reflector (35mm field of view) Ratio f/1.4 f/2.0 1:2.0 f/2.8 1:4.0 f/4.0 1:8.0 f/5.6 f/8 f/11 f/13 f/16 f/19 f/22 1:16 f/2.0 = 1:2.0 1:4.0 1:8.0 1:16 f/2.4 1:1.5 1:1.5 1:2.5 1:5.5 1:11 1:21 f/2.8 1:2.0 = 1:2.0 1:4.0 1:8.0 1:15 1:22 f/3.4 1:3.0 1:1.5 1:1.5 1:2.5 1:5.5 1:10 1:15 1:22 f/4.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:7.5 1:11 1:16 1:23 f/4.8 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:5.0 1:7.5 1:11 1:16 1:21 f/5.6 1:8.0 1:4.0 1:2.0 = 1:2.0 1:4.0 1:5.5 1:8.0 1:12 1:15 f/6.7 1:11 1:5.5 1:3.0 1:1.5 1:1.5 1:2.5 1:3.5 1:5.5 1:8.0 1:11 f/8 1:16 1:8.0 1:4.0 1:2.0 = 1:2.0 1:2.5 1:4.0 1:5.5 1:7.5 f/10 1:23 1:12 1:5.5 1:3.0 1:1.5 1:1.5 1:2.0 1:3.0 1:4.0 1:5.5 f/11 1:15 1:7.5 1:4.0 1:2.0 = 1:1.5 1:2.0 1:3.0 1:4.0 f/13 1:22 1:11 1:5.5 1:2.5 1:1.5 = 1:1.5 1:2.0 1:3.0 f/16 1:16 1:8.0 1:4.0 1:2.0 1:1.5 = 1:1.5 1:2.0 f/19 1:23 1:12 1:5.5 1:3.0 1:2.0 1:1.5 = 1:1.5 f/22 1:15 1:7.5 1:4.0 1:3.0 1:2.0 1:1.5 =

Ratio EV Ra 1.0 1:2 1.6 2.0 2.3 2.6 2.8 3.0 3.2 1:3 1:4 1:5 1:6 1:7 1:8 1:9

3.3 1:10

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