CameraWorth.com

Mamiya M645

The Mamiya M645 is a 6x4.5 medium format SLR introduced in the mid-1970s, using 120 or 220 roll film to produce 15 or 30 frames per roll. It was Mamiya's first camera in the 645 system and was positioned as a more portable, affordable alternative to 6x6 and 6x7 medium format bodies aimed at wedding, portrait and travel photographers.

At recent UK auction, hammer prices for M645 bodies have typically fallen between £110 and £335, with the last two years clustering around a £250–£260 median. Historic results stretch the range to roughly £82–£380 depending on outfit contents and condition, and in 2026 today a clean, working body with the 80mm Sekor C standard lens generally sells for more than a body-only example. Condition of the foam light seals, meter accuracy and the presence of an unscratched waist-level or prism finder remain the main factors driving what an M645 is worth in the saleroom.

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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.

Prices updated: August 2025

Date Price Source
Aug 2025 £250 Flints Auctions
Oct 2024 £260 Special Auction Services
Jan 2021 £335 Flints Auctions
Jul 2017 £110 Harper Field Auctions
Apr 2003 £129 Christie's
Apr 2003 £376 Christie's
Apr 2003 £82 Christie's

Frequently asked questions

What is a Mamiya M645 worth today?

Recent UK auction hammer results place the M645 body at roughly £250 to £335, with outfits including lenses and finders occasionally pushing higher.

How much does a Mamiya M645 sell for at auction?

Over the last several years the M645 has sold for between about £110 and £335 in UK salerooms, with a median around £250.

Is the Mamiya M645 a good value in medium format?

For its 6x4.5 negative size and interchangeable lens system, the M645's current price remains lower than the RB67 or Pentax 67, making it one of the more accessible routes into medium format.

Does the Mamiya M645 need batteries to work?

Yes, the shutter is electronically timed and the camera will not fire normally without a working battery, which is a key point to verify before buying.

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