Second-hand cameras and repair

Cameras older than the people buying them, and a notice that only goes out when there is something to say

Two floors of used bodies and glass, a bench that still services mechanical shutters, and a grading scale the shop will argue with you about rather than quietly inflate.

LINE, explained

Not signed in — ask about anything public, or sign in from the chat to see your own subscriptions.

Tsukumo Camera Preview — no official account

Today

A preview: the LINE thread is drawn in this site's own CSS. No official account is linked and nothing here reaches LINE.

Tap a reply and the assistant answers inside the frame — that is the live product, not a recording. What is real on this page

LINE

What an official account is for, and what it is emphatically not

The channel is built around a person adding a business as a friend, which makes it the most permission-shaped surface in messaging — and the least forgiving of a shop that treats the follower list as a mailing list.

Adding a business is an act, and so is removing one

Somebody scans a code or taps a link to add the account, and they can block it in two taps from the same screen they use for their friends. Nothing about this channel lets a business arrive uninvited, which is why what gets sent has to be worth the tap.

Broadcasts are metered, replies are not

Pushing a message to every follower is counted and charged; answering somebody who wrote first is not. The economics point exactly where the manners already did — send rarely, answer quickly.

Rich menus do more than a paragraph

The channel carries a persistent menu and structured cards under the keyboard, so 'which notices am I on' becomes a tap rather than a sentence — and an assistant here should be reaching for those instead of writing lists.

See it answer

Three things worth asking

Each one opens the assistant with the question already sent — you only wait for the reply.

What notices can I follow, and how often does each one actually send?

Answered from the published notice list and membership levels through list_services and list_plans.

Stop the trade-in offers but keep the arrivals notice.

Opens the subscription form as a card in the chat, already set to the notice you named.

What's the state of TK-4409?

Asks which email it sits on, then reads it back. Signed in, it goes straight to your own notices.

What you can follow

The five notices the counter sends, and how often each one goes out

Each one is a separate choice with its own rhythm and its own audience. The assistant changes exactly the one you name and leaves the rest alone.

Just arrived

What came in off the bench this week with its honest grade — haze, separation, a sticky slow speed said out loud rather than discovered at home.

TK-ARRAnyone following

Saturday mornings, weekly

Your want list

A single message the day something on your own list turns up. Nothing else is ever sent on this one.

TK-WANTCounter card and above

Only when it happens, sometimes never

Bench ready

Your repair is finished, what was done to it, what it came to, and until when it is held at the counter.

TK-BENCHAnyone with a repair in

The day the job closes

Trade-in offers

What the shop is short of and paying well for this month, with the grading the offer assumes.

TK-TRADETrade priority members

First of the month

Darkroom nights

The monthly evening upstairs: who is printing, what is being demonstrated, and the six places that are not already gone.

TK-DARKAnyone following

Ten days ahead, monthly

The desk

Your notices, as the counter has them

Subscriptions and their state, with the reference the counter files them under. Look one up with its reference and the email it sits on, or sign in and see your own.

TK-4408active

Following the weekly arrivals notice

Running since November 2025, never paused. Opened 38 of the last 44 sends.

TK-4409active

Watching for a 35mm f/2 in Leica thread mount, clean glass only

One came in during June and was declined on haze, correctly. Nothing since — this notice is quiet by design.

TK-4415stopped

Stopped at the follower's request

Stopped on 30 August and took effect at the 1 September send, as promised. Nothing has gone out since.

Signed in as the demo customer, the assistant reads these back through my_subscription. Signed out, it asks for a email address and the email it belongs to.

An abstract rendering of the Tsukumo queue

The counter card

Three levels of standing at the shop — following costs nothing, the card buys you the bench, and the trade priority is for people who sell as well as buy.

Following

Free

Anyone who wants to hear what arrived without walking past the window every week.

  • Just arrived and Darkroom nights
  • No purchase, no card, no obligation
  • Every notice can be stopped on its own
  • Stopping takes effect on the next send

Counter card

¥3,500 a year

People who actually use the bench and want to be told before a body goes on the shelf.

  • A want list the counter genuinely watches
  • Ten per cent off bench labour
  • Twenty-four hours on anything before it is listed publicly
  • Two free sensor or seal inspections a year

Trade priority

¥9,000 a year

Collectors and dealers who sell into the shop as often as they buy from it.

  • Monthly buying list before it goes out
  • Valuations at the bench inside two working days
  • Consignment at a reduced commission
  • A named buyer rather than whoever is on the floor
The Tsukumo workspace

Change what you receive

Pick the lists you want. Unsubscribing takes effect on the next send, not in a fortnight. The assistant can open this same form for you — that is what open_desk_form does.

What is real here, and what is not

Tsukumo Camera is a business invented for this page. Read this before you believe anything else on it.

Genuinely running

  • The assistant in the thread is a live Busymate AI assistant, grounded in this site's own published pages.
  • The notice list, the membership levels and the subscription states come from this demo's own MCP server — real tool calls, not pasted text.
  • The page registers its own actions over WebMCP, so an agent can highlight a notice or open the subscription form.
  • Signing in as the demo follower is a real identity hand-off: the assistant receives a name and an email address it never asked for.

Seeded, not connected

  • There is no LINE official account behind this page. Nothing here is broadcast, nothing is added to anybody's friend list, and no LINE service is contacted at any point.
  • Tsukumo Camera is an invented shop. The address, the telephone number, the email, the staff, the stock, the prices and the subscriptions are all fictional — nothing here dials or reaches anybody.
  • Subscription changes made here live in memory until this demo restarts. No list is written to and nobody is sent anything.

The LINE connection is on the roadmap, not in production — this page shows the assistant half of it working against a seeded follower list so you can judge the experience before an account exists.

Put this on your own site

The same counter, on your own official account

The same assistant, the same page actions, the same identified sign-in — on your LINE setup instead of this one.

  1. Point the assistant at your site so your own notices, rhythms and membership levels become the answers it gives, as published content rather than a re-typed copy.
  2. Expose the follower list as a small MCP server: the notices that exist, a lookup by reference and email, and a read that only answers for the signed-in person.
  3. Give the subscription tool an action card, so a change is one tap on the right notice instead of a sentence somebody has to interpret.
  4. Put the consent rules in the assistant's own instructions rather than in a policy page — never adding an unasked notice is a behaviour, not a paragraph.
  5. Link the official account last. The add-as-friend step is cheap; being worth keeping after it is the part that takes the work above.

How to integrate LINE

Frequently asked

The assistant answers from these same words — ask it any of them and compare.

How often will you actually message me?

Less than you expect. The arrivals notice is weekly, darkroom nights are monthly, and the want list may go two years without sending anything at all. Nothing is bundled — following one notice never quietly signs you up to another.

What does the bench charge?

Labour is quoted per job after the camera has been opened, never from a photograph, and a counter card takes ten per cent off it. If the bench cannot fix something it will say so at the inspection rather than after three weeks, and inspections that end that way are not charged for.

How honest is the grading?

Deliberately pessimistic. Haze, separation, sticky slow speeds and tired seals are listed even when a photograph would hide them, and the shop would rather talk somebody out of a body than take a return six weeks later. If the description and the camera disagree, it comes back.

Can I stop everything at once?

Yes, in one message, and it takes effect on the next send rather than at the end of some cycle. Stopping everything does not close a counter card or cancel a repair — those are separate things, and the counter will say which is which before doing anything.