Exposure Calculators

Two sliding-scale, paper exposure calculators to print, cut out and assemble. Particularly useful for users of old, manual cameras.

• Exposure Calculator
• Mini Exposure Calculator

The larger calculator has the exposure scales all on one side, and some more detailed EV tables on the back. The mini calculator is credit card sized, and is reversible - one side for bright conditions and the other for dim light.

Other exposure calculators

The one that inspired mine - Dave Harris's Exposure-Mat:
expomat.tripod.com

And the one that inspired that - Rick Oleson's pocket exposure calculator:
rick_oleson.tripod.com/index-43.html

The main functional differences between the Exposure-Mat and my version are:

• My version extends a couple of stops further into higher ISOs and lower EVs (this was the initial reason for making it).
• Exposure-Mat takes the sunny f/16 rule as a reference point, whereas mine is based on EV 0 = 1 sec @ f/1.0 @ 100 ISO. This only makes 1/3 of a stop difference, which is unlikely to be of any practical significance.

If neither of those matter to you, I suggest you use whichever one you prefer the look of!