u/Fabulous-Wall-9385

Organiser disclosure up front: I run the Kasumi Cup, so this is my own project — but the problem I want to talk through is a real one, and I'm curious what this crowd thinks.

The Cup judges six polishers' finishes from photographs alone. Which raises the obvious objection: a photo can't hold everything a polish does. Zoom into a 100MP image and you can find "flaws" no human eye would ever catch holding the knife at a normal distance — and then you're damning a finish for something that doesn't exist in the hand. That's not fair to the maker.

So the question became: how close is it fair to look? The answer we landed on is your own eye — roughly 20cm, the closest most people can focus on steel before it blurs. To make that a real limit instead of a number, we shot the blade next to a coffee bean at life size, then a phone showing the blade with the actual bean beside the screen. Zoom past the point where the real bean goes blurry, and you've gone past what any eye can see.

It's an imperfect ruler — two beans differ, screens differ — but all the imperfection pushes toward looking less close, which is the fair side to err on.

Curious where you'd poke holes in it. (Rules and the full-res images in a comment, for anyone who wants to pixel-peep.)

As far as I know, this is the first proper kasumi polishing competition, and I wanted to post it here because TCK is one of the few rooms where people will immediately get why it matters.

The idea is simple and a little unusual. Six finalists each receive an identical 180mm gyuto — same steel, same smith, wrought iron and 135Cr3, forged by Milan Gravier and delivered raw at 80 grit. They get two months to polish it however they read the blade. The finished blades come back anonymised, are photographed under identical conditions, and are judged on the finish alone: geometry, cleanliness, contrast, and interpretation. Sharpness isn't a criterion. No name is attached during judging, so the only thing that can win is the work.

Full disclosure — I'm the one organising it. I polish under the name Nutmeg (@nutmeg_uchigumori on Instagram), which is the easiest way to decide whether I'm worth taking seriously on this. The judges are Milan Gravier (the smith) and Mark Gonzales (collector). I handle the first-round selection but I'm deliberately not on the scoring jury.

The part that might interest you even if you never touch a stone: all six finished blades are raffled off at the live final. A Gravier-forged, master-finished gyuto doesn't come up often, and the raffle is how the blades find homes and how the smith's costs get covered.

How it runs: registration is open until 16 August, the six finalists are announced 1 September, the polishing happens September through November, and the final is streamed on YouTube on 20 December.

If you polish and this sounds like your thing, the entry link is in the comments. And ask me anything — I'm glad to get into the reasoning behind any part of it.