Macro Photography Calculator
Magnification ratio, DOF, and working distance.
Inputs
Results
Magnification (×)
1
Depth of field (mm)
0.96
Effective aperture (f/)16
Working distance (mm)200
Light loss (stops)2
Airy disk (µm)21.5
Diffraction limited?0
How to Use This Calculator
- Enter the lens focal length, minimum focusing distance, and maximum magnification ratio.
- Set the subject size in mm that you want to fill the frame.
- Input the aperture you plan to use.
- Review the Depth of Field at the selected magnification and aperture.
- Use the Extension Tube Required output to reach magnifications beyond the lens minimum.
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