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Mamiya M645J

The Mamiya M645J is a medium format SLR that exposes 6x4.5cm frames on 120 and 220 roll film. It was positioned as a simplified, lower-cost entry point into the Mamiya 645 system, using the same bayonet mount as the rest of the M645 line and accepting Sekor C lenses.

At recent UK auction, hammer prices for the M645J have ranged from about £81 to £310, with a median close to £220 — wholesale saleroom results rather than dealer retail. As of 2026 the body remains one of the more affordable ways into 6x4.5 shooting, and what a given example sells for is driven largely by cosmetic condition, working shutter speeds, and whether a lens and finder are included.

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Sales History

Prices shown are UK auction hammer results — the wholesale level achieved in the saleroom. Neither buyer’s nor seller’s commission is included. Dealer and retail asking prices are typically higher.

Date Price Source
May 2025 £220 Special Auction Services
Apr 2024 £210 Special Auction Services
Jun 2023 £290 Special Auction Services
Apr 2023 £312 Flints Auctions
Mar 2023 £81 Flints Auctions

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