Depth-of-field planner

What it does

Compare estimated near and far focus limits for two lens, aperture and focus-distance setups.

How to use it

1. Choose a blur criterion and two lens setups, then compare near/far limits and hyperfocal distances.
2. Processing stays in your browser. No upload or sign-up.

Example

At 50 mm, f/8, 3 m and a 0.03 mm blur criterion, the estimated near/far limits are about 2.338 m and 4.185 m.

Methodology

Thin-lens equations use h = f²/(N c), near = h s/(h + s − f), far = h s/(h − s + f), and hyperfocal = h + f. A non-positive far denominator means infinity.

Limitations

Focal length 1–2,000 mm, f-number 0.5–128, distance up to 1,000,000 m and blur diameter 0.001–0.2 mm. Distance must exceed focal length and is measured from the principal plane. Symmetric pupil assumption; no diffraction, aberration, focus-breathing or perceived-sharpness guarantee. No camera permission.

Automation

This tool runs in your browser. No upload API or MCP endpoint is available.