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CLUSTER FIELD-CALCULATOR-LENS · 5 ENTRIES · EARLIEST ENTRY unknown

Optical and lens calculators

This cluster comprises web-based tools for optical calculations, including field of view, ray tracing, depth of field, and lens selection for photography, opticianry, and industrial imaging. The dated history is too thin to read a shape from—only one entry has a pre-index source date, and four members are undated, indicating the cluster predates the index or lacks clear temporal coverage. Traction leaders, all with 0 stars, are Aalener Optik-Formelrechner, Camera Field of View Calculator, and M12 Lens Selector.

Entry timeline

ENTRY TIMELINE

AUG 2026: 5
AUG 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 4 ai-built · 1 unlabelled

Operator · 1 hobby · 1 commercial · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 5 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01PoseCalib0★unknownlivehobbyInteractive tool that guides users through camera calibration by displaying target pose overlays for efficient pose selection.
  2. 02Camera Field of View Calculator | FOV Calculator for Optical Engineering0★unknownliveai-builtWeb-based calculator for optical engineers that computes camera field of view, angular resolution, sensor size, and lens distortion across projections.
  3. 03M12 Lens Selector - Commonlands Optics0★unknownliveai-builtcommercialLens comparison tool that lets users filter M12 lenses by specs, calculate field of view for any sensor, and order samples.
  4. 04DOF Calculator — Professional Depth of Field Tool0★unknownliveai-builtWeb-based depth of field calculator for photographers that computes hyperfocal distance, near and far limits, and defocus blur.
  5. 05Lens Finder | Commonlands — C-Mount & M12 Industrial Lenses0★unknownliveai-builtWeb app that helps select industrial C-Mount and M12 lenses by filtering specifications and calculating field of view for a sensor.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.