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92 breeds

A greyhound and a pug are not looking at the same field.

A greyhound reads a disc a hundred metres out. A pug barely sees it at ten. Find your dog below — what it can play, how it moves, and what GHOSTCATCHER gives it.

Two things we will not pretend.

UV is not a breed trait. It changes with age, not with breed — an older lens passes less. Anyone publishing a UV score per breed made it up.

Viewing angles are estimates. Worked out from head shape, shown as a range, never measured on your dog. See the method.

One disc, sized for medium and large dogs. A smaller size follows the first run — customers get asked which to tool first.

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Photo credits and licences (100)

Photographs come from Wikimedia Commons under licences that permit commercial use, except eight breed portraits marked "AI render", which were generated for this page and involve no third-party licence. Each was cropped to a 5:4 frame and exposure-normalised for this page; the originals are unmodified at the links below. Licences marked ShareAlike apply to these derivatives too.