Why a Bench, Not a Camera App
A photograph of a coin is not an examination of it
A phone snap tells you the coin is round and roughly what color it is. It does not tell you what
the metal IS - color is not composition, and a toned silver coin, a plated cent and a
struck counterfeit can all photograph the same. Everything that decides what it is worth
lives in how the metal catches light, and that only appears when you can control the light,
the angle and the magnification - and then measure what you see.
Light It from Anywhere
Use a real light - a phone flashlight will do. Hold it low to one side, take a
shot, move it round, take another. From that set the program solves the ACTUAL surface:
measured relief, not inferred, and the only version worth trusting a number from. It
takes about a minute and needs nothing you do not already own.
There is also a virtual raking lamp you can swing around a single photograph, for a bench
where no light can be moved at all. It is a SIMULATION - it infers the surface from one
picture and re-lights that, so it shows a plausible shadow rather than a recorded one,
and a stain that looks like a slope will fool it. Good for looking. Not for measuring,
and not the one to reach for when a real light is within reach.
Fifteen Ways to Look
Relief, micro detail, doubling scan, crack scan, contour map, flow direction, heat map,
depth map, edges, negative, solarize, polarize. Each one makes a different fault
obvious, and each is applied to the live view and to saved photographs alike.
Numbers, Not Impressions
Calibrate against a coin of known diameter, a steel rule or a stage micrometer, and the
on-screen caliper reads in millimeters and microns. A measurement you can put in a
listing beats an adjective every time.
It Says When It Is Guessing
Tools that MEASURE and tools that INFER live on separate tabs, and the inferring ones are
labeled in pale yellow with their own weaknesses written next to them. No tool here
will hand you a confident answer it has not earned.
Your Photographs Stay Yours
Nothing is watermarked. Nothing is uploaded. Every capture is written to your own folder,
filed under the coin it belongs to, with the settings that took it recorded alongside.
Built on One Collection
Photographs, notes, grades, provenance, storage location and value all hang off the coin
record - so the picture, the paperwork and the price are never in three different places
again.
