Two sliding-scale, paper exposure calculators to print, cut out and assemble. Particularly useful for users of old, manual cameras (like these).
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.
The one that inspired mine - Dave Harris's Exposure-Mat:
And the one that inspired that - Rick Oleson's pocket exposure calculator:
The main functional differences between the Exposure-Mat and my version are:
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