Question 1

What is EV (Exposure Value)?

Accepted Answer

EV (Exposure Value) is a single number representing a combination of shutter speed and aperture. Each +1 EV doubles the exposure.

Question 2

How does changing f-stop affect photos?

Accepted Answer

Each full f-stop change (e.g., f/2.8 to f/4) halves the light. Lower f-stops give shallower depth of field (blurry backgrounds); higher f-stops give sharper overall focus.

Question 3

What EV values are typical?

Accepted Answer

Sunny day: EV 15, overcast: EV 12, indoor lighting: EV 7-8, candlelight: EV 1-2, night photography: EV -2 to -6.

Question 4

How do I use the exposure triangle?

Accepted Answer

Aperture, shutter speed, and ISO form the exposure triangle. Changing one requires adjusting another to maintain exposure. EV helps simplify these calculations.

EV Calculator (Exposure Value)

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