// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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photo.sensor-crop Calculator
Converts between actual and equivalent focal lengths for any crop factor, and calculates the effective aperture equivalent for depth-of-field comparison across sensor sizes. Lens equivalency is the most misunderstood concept when comparing cameras of different sensor sizes.
Inputs
Focal 35
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Crop
A multiplier applied in the calculation.
Pixel Size
Reference formula or conversion factor shown for context.
Results
equiv. focal length (mm)
The computed linear length.
AoV full frame (deg)
Reference formula or conversion factor shown for context.
AoV cropped (deg)
Reference formula or conversion factor shown for context.
diffraction limit (f-stop)
Sample size or count used in the calculation.
crop factor
A dimensionless multiplier applied in the calculation.