How this calculator works
Enter focal length (mm), aperture f-number, focus distance (m), circle of confusion (mm). CalcStack applies the displayed formula and reports each intermediate planning value with the units shown.
Formula / method
Hyperfocal distance H = f²/(Nc)+f; near/far focus distances derive from H, focus distance and focal length
Worked example
Use the documented default inputs to model photography depth of field.
Assumptions and limitations
Inputs represent stable average operating conditions and the displayed equation applies.
This is a planning model; real systems and measurements can require domain-specific corrections.