Questions tagged “ev”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

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162

How do I calculate pinhole camera exposure time from EV and f-number?

evfilm-photographypinholeshutter-speedexposure

Bryan Cepak

1y ago

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234

Why do EV-to-lux tables exist, but not lux-seconds-to-EV tables?

evisolight-meteringluxexposure

Photography Stack Exchange contributor

3y ago

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166

Why does the EV formula use 3.32 with base-10 logarithms?

evaperturemeteringshutter-speedexposure

Photography Stack Exchange contributor

4y ago

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867

How do I calculate exposure value (EV) from EXIF aperture, shutter speed, and ISO?

evmetadataexifisoexposure

Photography Stack Exchange contributor

7y ago

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214

What is APEX in photography, and how does it relate to exposure value (EV)?

evphotography-theoryapexexposure

Photography Stack Exchange contributor

9y ago

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91

How do you combine exposure values from a bright lamp and ambient light?

evlightingmeteringexposure

Photography Stack Exchange contributor

11y ago

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113

How do I convert Sekonic EV readings to lux?

light-meterevinfraredluxexposure

Photography Stack Exchange contributor

11y ago

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85

What does exposure bias “12/6 EV” mean on a Nikon photo?

nikonevmetadataexposure-compensationexposure

Photography Stack Exchange contributor

11y ago

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2

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102

What does “autofocus at EV 0 with an f/2.8 lens” mean?

evautofocussonyaperturelow-light

Photography Stack Exchange contributor

12y ago

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134

How can I determine the light level needed for a specific film ISO, shutter speed, and aperture?

light-meterevisofilmexposure

Photography Stack Exchange contributor

12y ago

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125

Can EXIF be used to compare scene illuminance across different cameras?

evexifmeteringluxexposure

Photography Stack Exchange contributor

13y ago

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102

Why doesn’t exposure value increase with ISO in the way I expect?

evisobasicsmeteringexposure

Photography Stack Exchange contributor

13y ago

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2

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166

How does exposure compensation change shutter speed, aperture, or ISO?

evexposure-compensationisoshutter-speedexposure

Photography Stack Exchange contributor

14y ago

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231

What do absolute EV values mean, and what does autofocus at -2 EV indicate?

evautofocuslow-lightmeteringexposure

Photography Stack Exchange contributor

14y ago

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651

What is the EV (Exposure Value) scale and how does it work?

evaperturemeteringshutter-speedexposure

Photography Stack Exchange contributor

14y ago

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186

What is photometric exposure, and how does it relate to exposure and EV?

evlight-measurementphotometrymeteringexposure

Photography Stack Exchange contributor

15y ago

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2807

How do you convert EV to lux?

light-meterevmeteringluxexposure

Photography Stack Exchange contributor

15y ago