Photo Aspect Ratio Calculator
Photo Aspect Ratio
Photography calculation
f/
1/x sec
Formula
EV = log2(f² x SS / ISO)
Frequently Asked Questions
What is the exposure triangle?
The exposure triangle consists of aperture, shutter speed, and ISO. Changing one requires adjusting another to maintain proper exposure.
What is EV?
Exposure Value (EV) is a number representing the combination of shutter speed and f-number that gives the same exposure.