ev calculator1

8/13/2019 EV Calculator1

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Exposure Value (EV) Calculator

Copyright J.L. Colwell 2007, www.jcolwell.ca

Version 03 .2009-11-05

User input => t = 60 t = inverse of shutter speed (sec), see Examples

User input => f/ = 16 f/ = aperature f-number,as labeled on aperature ring

User input => ISO = 100 ISO = film ISO rating (baseline EVB table is for ISO = 100)

Calculated EV = 13.9 EV = (log(Tv)/log(2)) + (log(Av)/log(sqrt(2)) - log(ISO/100)/log(2)

Examples t = 125 for speed 1/125 (sec)

t = 0.5 for speed 2 (sec) (i.e. t = 1/2 = 0.5)


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Exposure Value Chart

EV TYPE OF LIGHTING SITUATION

-6 night, away from city lights, subject under starlight only.-5 night, away from city lights, subject under crescent moon.

-4 night, away from city lights, subject under half moon. meteors (during showers, with time exposure).

-3 night, away from city lights, subject under full moon.

-2 night, away from city lights, snowscape under full moon.

-1 subjects lit by dim ambient artificial light.

0 subjects lit by dim ambient artificial light.

1 distant view of lighted skyline.

2 lightning (with time exposure). total eclipse of moon.

3 fireworks (with time exposure).

4 candle lit close-ups. christmas lights, floodlit structures, fountains. subjects under bright street lamps.

5 night home interiors, average light. school or church auditoriums. subjects lit by campfires or bonfires.

6 brightly lit home interiors at night. fairs, amusement parks.

7 bottom of rainforest canopy. brightly lighted nighttime streets. indoor sports. stage shows, circuses.

8 bright city lights, store windows, campfires, indoor shows, illuminated night sports, bright florescent lights.

9 landscapes, city skylines 10 minutes after sunset. neon lights, spotlighted subjects.

10 landscapes and skylines immediately after sunset. crescent moon (long lens).

11 sunsets. subjects in open shade.

12 half moon (long lens). subject in heavy overcast.

13 gibbous moon (long lens). subjects in cloudy-bright light (no shadows).

14 full moon (long lens). subjects in weak, hazy sun.

15 subjects in bright or hazy sun (sunny f/16 rule).

16 subjects in bright daylight on sand or snow.

17 - 23 rarely encountered in nature. some man made lighting.

based on http://www.fredparker.com/ultexp1.htmmodified by J Colwell to produce 'guidance.2 on next worksheet


3/12

EV Source of Incident Light EV Reflected Light, Direct Light

-6 starlight -6

-5 crescent moon -5

-4 half moon -4 meteor shower

-3 full moon -3

-2 full moon snowscape -2-1 -1

0 dim artificial light 0

1 1 distant view of lighted skyline

2 2 lightning, total eclipse of moon

3 3 fireworks

4 candle-lit closeup, street lamps 4 christmas lights, floodlit fountain

5 home interior, campfire 5 school auditorium

6 home interior (bright) 6 fairs, amusement parks.

7 sun - rainforest canopy 7 bright night streets, bright stage

8 bright floodlights (night sports) 8 bright lights, campfire

9 sunset - 10 minutes after 9 neon lights

10 sunset - immediately after 10 crescent moon

11 sun - open shade 11

12 sun - heavy overcast 12 half moon

13 sun - bright overcast 13 gibbous moon

14 sun - weak & hazy 14 full moon

15 sun - bright, hazy (f/16) 15

16 sun - on sand or snow 16

17+ sun - high altitude 17+


4/12

100

t

1/sec 1 1.4 2 2.8 4 5.6 8 11 16 22 32 64

8m 32s 0.002 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 3

4m 16s 0.004 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 4

2m 8s 0.008 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 5

64s 0.016 -6 -5 -4 -3 -2 -1 0 1 2 3 4 632s 0.031 -5 -4 -3 -2 -1 0 1 2 3 4 5 7

16s 0.063 -4 -3 -2 -1 0 1 2 3 4 5 6 8

8s 0.125 -3 -2 -1 0 1 2 3 4 5 6 7 9

4s 0.25 -2 -1 0 1 2 3 4 5 6 7 8 10

2s 0.5 -1 0 1 2 3 4 5 6 7 8 9 11

1 0 1 2 3 4 5 6 7 8 9 10 12

2 1 2 3 4 5 6 7 8 9 10 11 13

4 2 3 4 5 6 7 8 9 10 11 12 14

8 3 4 5 6 7 8 9 10 11 12 13 15

15 4 5 6 7 8 9 10 11 12 13 14 16

30 5 6 7 8 9 10 11 12 13 14 15 17

60 6 7 8 9 10 11 12 13 14 15 16 18

125 7 8 9 10 11 12 13 14 15 16 17 19250 8 9 10 11 12 13 14 15 16 17 18 20

500 9 10 11 12 13 14 15 16 17 18 19 21

1000 10 11 12 13 14 15 16 17 18 19 20 22

2000 11 12 13 14 15 16 17 18 19 20 21 23

4000 12 13 14 15 16 17 18 19 20 21 22 24

8000 13 14 15 16 17 18 19 20 21 22 23 25

400

t

1/sec 1 1.4 2 2.8 4 5.6 8 11 16 22 32 64

8m 32s 0.002 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 1

4m 16s 0.004 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 22m 8s 0.008 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 3

64s 0.016 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 4

32s 0.031 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 5

16s 0.063 -6 -5 -4 -3 -2 -1 0 1 2 3 4 6

8s 0.125 -5 -4 -3 -2 -1 0 1 2 3 4 5 7

4s 0.25 -4 -3 -2 -1 0 1 2 3 4 5 6 8

2s 0.5 -3 -2 -1 0 1 2 3 4 5 6 7 9

1 -2 -1 0 1 2 3 4 5 6 7 8 10

2 -1 0 1 2 3 4 5 6 7 8 9 11

4 0 1 2 3 4 5 6 7 8 9 10 12

8 1 2 3 4 5 6 7 8 9 10 11 13

15 2 3 4 5 6 7 8 9 10 11 12 14

30 3 4 5 6 7 8 9 10 11 12 13 1560 4 5 6 7 8 9 10 11 12 13 14 16

125 5 6 7 8 9 10 11 12 13 14 15 17

250 6 7 8 9 10 11 12 13 14 15 16 18

500 7 8 9 10 11 12 13 14 15 16 17 19

1000 8 9 10 11 12 13 14 15 16 17 18 20

2000 9 10 11 12 13 14 15 16 17 18 19 21

4000 10 11 12 13 14 15 16 17 18 19 20 22

8000 11 12 13 14 15 16 17 18 19 20 21 23

EV Table, ISO =

Aperture f-number, f/

EV Table, ISO =



5/12

100

t Aperture f-number, f/

1/sec 1.4 2 2.8 4 5.6 8 11 16 22

8m 32s 0.002 -8 -7 -6 -5 -4 -3 -2 -1 0

4m 16s 0.004 -7 -6 -5 -4 -3 -2 -1 0 1

2m 8s 0.008 -6 -5 -4 -3 -2 -1 0 1 264s 0.016 -5 -4 -3 -2 -1 0 1 2 3

32s 0.031 -4 -3 -2 -1 0 1 2 3 4

16s 0.063 -3 -2 -1 0 1 2 3 4 5

8s 0.125 -2 -1 0 1 2 3 4 5 6

4s 0.25 -1 0 1 2 3 4 5 6 7

2s 0.5 0 1 2 3 4 5 6 7 8

1 1 2 3 4 5 6 7 8 9

2 2 3 4 5 6 7 8 9 10

4 3 4 5 6 7 8 9 10 11

8 4 5 6 7 8 9 10 11 12

15 5 6 7 8 9 10 11 12 13

30 6 7 8 9 10 11 12 13 14

60 7 8 9 10 11 12 13 14 15125 8 9 10 11 12 13 14 15 16

250 9 10 11 12 13 14 15 16 17

500 10 11 12 13 14 15 16 17 18

1000 11 12 13 14 15 16 17 18 19

2000 12 13 14 15 16 17 18 19 20

4000 13 14 15 16 17 18 19 20 21

400


1/sec 1.4 2 2.8 4 5.6 8 11 16 22

8m 32s 0.002 -10 -9 -8 -7 -6 -5 -4 -3 -2

4m 16s 0.004 -9 -8 -7 -6 -5 -4 -3 -2 -12m 8s 0.008 -8 -7 -6 -5 -4 -3 -2 -1 0

64s 0.016 -7 -6 -5 -4 -3 -2 -1 0 1

32s 0.031 -6 -5 -4 -3 -2 -1 0 1 2

16s 0.063 -5 -4 -3 -2 -1 0 1 2 3

8s 0.125 -4 -3 -2 -1 0 1 2 3 4

4s 0.25 -3 -2 -1 0 1 2 3 4 5

2s 0.5 -2 -1 0 1 2 3 4 5 6

1 -1 0 1 2 3 4 5 6 7

2 0 1 2 3 4 5 6 7 8

4 1 2 3 4 5 6 7 8 9

8 2 3 4 5 6 7 8 9 10

15 3 4 5 6 7 8 9 10 11

30 4 5 6 7 8 9 10 11 1260 5 6 7 8 9 10 11 12 13

125 6 7 8 9 10 11 12 13 14

250 7 8 9 10 11 12 13 14 15

500 8 9 10 11 12 13 14 15 16

1000 9 10 11 12 13 14 15 16 17

2000 10 11 12 13 14 15 16 17 18

4000 11 12 13 14 15 16 17 18 19

EV Table, ISO =

EV Table, ISO =


6/12

400

t

1/sec 2.8 4 5.6 8 11 16

30 6 7 8 9 10 11

60 7 8 9 10 11 12

125 8 9 10 11 12 13

250 9 10 11 12 13 14500 10 11 12 13 14 15

1000 11 12 13 14 15 16

2000 12 13 14 15 16 17


EV Table, ISO =


7/12

EV Table for 4x5 LF, ISO = 100


1/sec 4.5 5.6 8 11 16 22 32 45 64 90 128

8m 32s 0.002 -5 -4 -3 -2 -1 0 1 2 3 4 5

4m 16s 0.004 -4 -3 -2 -1 0 1 2 3 4 5 6

2m 8s 0.008 -3 -2 -1 0 1 2 3 4 5 6 7

64s 0.016 -2 -1 0 1 2 3 4 5 6 7 8

32s 0.031 -1 0 1 2 3 4 5 6 7 8 9

16s 0.063 0 1 2 3 4 5 6 7 8 9 10

8s 0.125 1 2 3 4 5 6 7 8 9 10 11

4s 0.25 2 3 4 5 6 7 8 9 10 11 12

2s 0.5 3 4 5 6 7 8 9 10 11 12 13

1 4 5 6 7 8 9 10 11 12 13 14

2 5 6 7 8 9 10 11 12 13 14 15

4 6 7 8 9 10 11 12 13 14 15 16

8 7 8 9 10 11 12 13 14 15 16 17

15 8 9 10 11 12 13 14 15 16 17 18

30 9 10 11 12 13 14 15 16 17 18 19

60 10 11 12 13 14 15 16 17 18 19 20

125 11 12 13 14 15 16 17 18 19 20 21

250 12 13 14 15 16 17 18 19 20 21 22

500 13 14 15 16 17 18 19 20 21 22 23

EV Table for 4x5 LF, ISO = 400


1/sec 4.5 5.6 8 11 16 22 32 45 64 90 128

8m 32s 0.002 -7 -6 -5 -4 -3 -2 -1 0 1 2 3

4m 16s 0.004 -6 -5 -4 -3 -2 -1 0 1 2 3 4

2m 8s 0.008 -5 -4 -3 -2 -1 0 1 2 3 4 5

64s 0.016 -4 -3 -2 -1 0 1 2 3 4 5 6

32s 0.031 -3 -2 -1 0 1 2 3 4 5 6 716s 0.063 -2 -1 0 1 2 3 4 5 6 7 8

8s 0.125 -1 0 1 2 3 4 5 6 7 8 9

4s 0.25 0 1 2 3 4 5 6 7 8 9 10

2s 0.5 1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5 6 7 8 9 10 11 12

2 3 4 5 6 7 8 9 10 11 12 13

4 4 5 6 7 8 9 10 11 12 13 14

8 5 6 7 8 9 10 11 12 13 14 15

15 6 7 8 9 10 11 12 13 14 15 16

30 7 8 9 10 11 12 13 14 15 16 17

60 8 9 10 11 12 13 14 15 16 17 18

125 9 10 11 12 13 14 15 16 17 18 19

250 10 11 12 13 14 15 16 17 18 19 20500 11 12 13 14 15 16 17 18 19 20 21


8/12

100


1/sec 3.5 4 5.6 8 11 16 22 32

8m 32s 0.002 -5.4 -5 -4 -3 -2 -1 0 1

4m 16s 0.004 -4.4 -4 -3 -2 -1 0 1 2

2m 8s 0.008 -3.4 -3 -2 -1 0 1 2 3

64s 0.016 -2.4 -2 -1 0 1 2 3 4

32s 0.031 -1.4 -1 0 1 2 3 4 5

16s 0.063 -0.4 0 1 2 3 4 5 6

8s 0.125 0.6 1 2 3 4 5 6 7

4s 0.25 1.6 2 3 4 5 6 7 8

2s 0.5 2.6 3 4 5 6 7 8 9

1 3.6 4 5 6 7 8 9 10

2 4.6 5 6 7 8 9 10 11

4 5.6 6 7 8 9 10 11 12

8 6.6 7 8 9 10 11 12 13

15 7.5 8 9 10 11 12 13 14

30 8.5 9 10 11 12 13 14 15

60 9.5 10 11 12 13 14 15 16

125 10.6 11 12 13 14 15 16 17

250 11.6 12 13 14 15 16 17 18

500 12.6 13 14 15 16 17 18 19

400


1/sec 3.5 4 5.6 8 11 16 22 32

8m 32s 0.002 -7.4 -7 -6 -5 -4 -3 -2 -1

4m 16s 0.004 -6.4 -6 -5 -4 -3 -2 -1 0

2m 8s 0.008 -5.4 -5 -4 -3 -2 -1 0 1

64s 0.016 -4.4 -4 -3 -2 -1 0 1 2

32s 0.031 -3.4 -3 -2 -1 0 1 2 3

16s 0.063 -2.4 -2 -1 0 1 2 3 4

8s 0.125 -1.4 -1 0 1 2 3 4 5

4s 0.25 -0.4 0 1 2 3 4 5 6

2s 0.5 0.6 1 2 3 4 5 6 7

1 1.6 2 3 4 5 6 7 8

2 2.6 3 4 5 6 7 8 9

4 3.6 4 5 6 7 8 9 10

8 4.6 5 6 7 8 9 10 11

15 5.5 6 7 8 9 10 11 12

30 6.5 7 8 9 10 11 12 13

60 7.5 8 9 10 11 12 13 14

125 8.6 9 10 11 12 13 14 15

250 9.6 10 11 12 13 14 15 16

500 10.6 11 12 13 14 15 16 17

EV Table for Fuji GW670ii, ISO =

EV Table for Fuji GW670ii, ISO =


9/12

100


1/sec 4 5.6 8 11 16 22

4m 16s 0.004 -4 -3 -2 -1 0 1

2m 8s 0.008 -3 -2 -1 0 1 2

64s 0.016 -2 -1 0 1 2 3

32s 0.031 -1 0 1 2 3 416s 0.063 0 1 2 3 4 5

8s 0.125 1 2 3 4 5 6

4s 0.25 2 3 4 5 6 7

2s 0.5 3 4 5 6 7 8

1 4 5 6 7 8 9

2 5 6 7 8 9 10

4 6 7 8 9 10 11

8 7 8 9 10 11 12

15 8 9 10 11 12 13

30 9 10 11 12 13 14

60 10 11 12 13 14 15

125 11 12 13 14 15 16

250 12 13 14 15 16 17500 13 14 15 16 17 18

400


1/sec 4 5.6 8 11 16 22

4m 16s 0.004 -6 -5 -4 -3 -2 -1

2m 8s 0.008 -5 -4 -3 -2 -1 0

64s 0.016 -4 -3 -2 -1 0 1

32s 0.031 -3 -2 -1 0 1 2

16s 0.063 -2 -1 0 1 2 3

8s 0.125 -1 0 1 2 3 4

4s 0.25 0 1 2 3 4 5

2s 0.5 1 2 3 4 5 6

1 2 3 4 5 6 7

2 3 4 5 6 7 8

4 4 5 6 7 8 9

8 5 6 7 8 9 10

15 6 7 8 9 10 11

30 7 8 9 10 11 12

60 8 9 10 11 12 13

125 9 10 11 12 13 14

250 10 11 12 13 14 15

500 11 12 13 14 15 16

EV Table: Fuji GS645W 60mm f/4, ISO =

EV Table: Fuji GS645W 60mm f/4, ISO =


10/12

100

t Aperture, f/1/sec 1.7 2 2.8 4 5.6 8 11 16

8m 32s 0.002 -7 -7 -6 -5 -4 -3 -2 -1

4m 16s 0.004 -6 -6 -5 -4 -3 -2 -1 0

2m 8s 0.008 -5 -5 -4 -3 -2 -1 0 1

64s 0.016 -4 -4 -3 -2 -1 0 1 232s 0.031 -3 -3 -2 -1 0 1 2 3

16s 0.063 -2 -2 -1 0 1 2 3 4

8s 0.125 -1 -1 0 1 2 3 4 5

4s 0.25 0 0 1 2 3 4 5 6

2s 0.5 1 1 2 3 4 5 6 7

1 2 2 3 4 5 6 7 8

2 3 3 4 5 6 7 8 9

4 4 4 5 6 7 8 9 10

8 5 5 6 7 8 9 10 11

15 5 6 7 8 9 10 11 12

30 6 7 8 9 10 11 12 13

60 7 8 9 10 11 12 13 14

125 8 9 10 11 12 13 14 15250 9 10 11 12 13 14 15 16

500 10 11 12 13 14 15 16 17

400

t Aperture, f/1/sec 1.7 2 2.8 4 5.6 8 11 16

8m 32s 0.002 -9 -9 -8 -7 -6 -5 -4 -3

4m 16s 0.004 -8 -8 -7 -6 -5 -4 -3 -2

2m 8s 0.008 -7 -7 -6 -5 -4 -3 -2 -1

64s 0.016 -6 -6 -5 -4 -3 -2 -1 0

32s 0.031 -5 -5 -4 -3 -2 -1 0 1

16s 0.063 -4 -4 -3 -2 -1 0 1 28s 0.125 -3 -3 -2 -1 0 1 2 3

4s 0.25 -2 -2 -1 0 1 2 3 4

2s 0.5 -1 -1 0 1 2 3 4 5

1 0 0 1 2 3 4 5 6

2 1 1 2 3 4 5 6 7

4 2 2 3 4 5 6 7 8

8 3 3 4 5 6 7 8 9

15 3 4 5 6 7 8 9 10

30 4 5 6 7 8 9 10 11

60 5 6 7 8 9 10 11 12

125 6 7 8 9 10 11 12 13

250 7 8 9 10 11 12 13 14

500 8 9 10 11 12 13 14 15

EV Table for Olympus 35 SP, ISO =

EV Table for Olympus 35 SP, ISO =


11/12

100

t Aperture, f/1/sec 2.8 4 5.6 8 11 16 22

8m 32s 0.002 -6 -5 -4 -3 -2 -1 0

4m 16s 0.004 -5 -4 -3 -2 -1 0 1

2m 8s 0.008 -4 -3 -2 -1 0 1 2

64s 0.016 -3 -2 -1 0 1 2 332s 0.031 -2 -1 0 1 2 3 4

16s 0.063 -1 0 1 2 3 4 5

8s 0.125 0 1 2 3 4 5 6

4s 0.25 1 2 3 4 5 6 7

2s 0.5 2 3 4 5 6 7 8

1 3 4 5 6 7 8 9

2 4 5 6 7 8 9 10

4 5 6 7 8 9 10 11

8 6 7 8 9 10 11 12

15 7 8 9 10 11 12 13

30 8 9 10 11 12 13 14

60 9 10 11 12 13 14 15

125 10 11 12 13 14 15 16250 11 12 13 14 15 16 17

500 12 13 14 15 16 17 18

400

t Aperture, f/1/sec 2.8 4 5.6 8 11 16 22

8m 32s 0.002 -8 -7 -6 -5 -4 -3 -2

4m 16s 0.004 -7 -6 -5 -4 -3 -2 -1

2m 8s 0.008 -6 -5 -4 -3 -2 -1 0

64s 0.016 -5 -4 -3 -2 -1 0 1

32s 0.031 -4 -3 -2 -1 0 1 2

16s 0.063 -3 -2 -1 0 1 2 38s 0.125 -2 -1 0 1 2 3 4

4s 0.25 -1 0 1 2 3 4 5

2s 0.5 0 1 2 3 4 5 6

1 1 2 3 4 5 6 7

2 2 3 4 5 6 7 8

4 3 4 5 6 7 8 9

8 4 5 6 7 8 9 10

15 5 6 7 8 9 10 11

30 6 7 8 9 10 11 12

60 7 8 9 10 11 12 13

125 8 9 10 11 12 13 14

250 9 10 11 12 13 14 15

500 10 11 12 13 14 15 16

EV Table for Rollei 35 SE, ISO =

EV Table for Rollei 35 SE, ISO =


12/12

100


1/sec 4.5 5.6 8 11 16 22

4m 16s 0.004 -4 -3 -2 -1 0 1

2m 8s 0.008 -3 -2 -1 0 1 2

64s 0.016 -2 -1 0 1 2 3

32s 0.031 -1 0 1 2 3 416s 0.063 0 1 2 3 4 5

8s 0.1 1 2 3 4 5 6

4s 0.25 2 3 4 5 6 7

2s 0.5 3 4 5 6 7 8

1 4 5 6 7 8 9

2 5 6 7 8 9 10

5 7 7 8 9 10 11

10 8 8 9 10 11 12

25 9 10 11 12 13 14

50 10 11 12 13 14 15

100 11 12 13 14 15 16

300 13 13 14 15 16 17

400


1/sec 4.5 5.6 8 11 16 22

4m 16s 0.004 -6 -5 -4 -3 -2 -1

2m 8s 0.008 -5 -4 -3 -2 -1 0

64s 0.016 -4 -3 -2 -1 0 1

32s 0.031 -3 -2 -1 0 1 2

16s 0.063 -2 -1 0 1 2 3

8s 0.1 -1 0 1 2 3 4

4s 0.25 0 1 2 3 4 5

2s 0.5 1 2 3 4 5 6

1 2 3 4 5 6 7

2 3 4 5 6 7 8

5 5 5 6 7 8 9

10 6 6 7 8 9 10

25 7 8 9 10 11 12

50 8 9 10 11 12 13

100 9 10 11 12 13 14

300 11 11 12 13 14 15

EV Table: Zeiss Ikon Ikonta(521) 75/4.5 =

EV Table: Zeiss Ikon Ikonta(521) 75/4.5 =

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