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Photo & Video
Diffraction Limit
Max f/ before sharpness loss
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Parameters
Results
- Max f/ (≈)
- f/0.3
- Pitch
- 5 μm
- Airy disk
- 1.342 mm
How it works
Find the maximum f-stop before diffraction visibly softens image sharpness.
Who it's for: Photographers balancing depth of field against pixel-level sharpness.
Based on pixel pitch (pixels/mm) and light wavelength.
Stopping down beyond the limit trades DOF for resolution loss.
Default ~200 pixels/mm suits 24 MP full-frame sensors.
How to use
- Enter Pixels/mm and wavelength λ (nm).
- Read Max f/ (≈) as the practical diffraction ceiling.