The Rolleiflex (4.5x6, prototype) is a pre-production medium-format twin-lens reflex camera from Rollei, configured for the 4.5x6 cm frame format rather than the 6x6 cm size used by the production Rolleiflex line. As a prototype it never reached series production, which is the primary driver of its value today.

With only a single recorded UK auction result available, the price reference point is a £65,000 hammer figure achieved at saleroom level in March 2014 — wholesale rather than retail, and excluding commission. Prototype Rolleiflex cameras of this kind are essentially one-off collector pieces, so what one sells for in 2026 depends almost entirely on which specific example surfaces and who is bidding on the day. Buyers researching what a Rolleiflex 4.5x6 prototype is worth today should treat that 2014 figure as indicative rather than a reliable current market price.