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Photography

Reddit-sourced calculators for hobby photographers — lens resolving power, focal-length equivalence, strobe aperture, day rate, and photobook total cost.

8 tools available

Lens Resolving Power

How much detail can a lens + sensor actually resolve?

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Photography Day Rate

Build a realistic day rate from salary, overhead, and margin.

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Photobook Total Cost

Estimate landed cost of a printed photobook including shipping and GST.

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Strobe Aperture Setter

Pick a starting strobe setting for the f-stop you want.

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Focal Length Equivalent

Convert a focal length across formats and see the equivalent FoV.

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Lens Diffraction / Sensor Resolving Power

Compute the effective resolving power of your camera / lens combo in lp/mm.

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Print Color Profile Picker

Decide between sRGB and Adobe RGB and the required file size for prints.

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Teleconverter Field of View

Compute effective focal length and aperture when adding a 1.4× / 1.7× / 2× / 3× TC.

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