The Leitz CM Zoom (prototype) is a compact 35mm film camera built by Leica as a pre-production zoom variant of the CM compact line. As a prototype, it was never offered as a full retail product, which is the primary driver of its current collector value.

Hammer data for the CM Zoom (prototype) is extremely thin at saleroom level — a single UK auction record from 2013 sold for £500, so any statement of what one is worth today rests on that lone reference point. With no recent comparables in the auction market in 2026, a confident price range cannot be drawn; collectors typically price prototype Leitz bodies individually rather than by a published guide.