Exposure calculator

Enter your camera settings and filters to get the scene EV, a Sunny 16 reference shutter, and equivalent aperture/shutter pairs at the same exposure.

Scene EV (ISO 100)—

Settings EV—

Light reading—

Sunny 16 shutter (f/16)—

Equivalent exposures (same EV)

Aperture	Shutter	vs. current

Computed with the standard APEX formula EV = log₂(N²/t). Negative film tolerates overexposure; slide film does not.