The Canon FTbn QL is a 35mm film SLR introduced in the early 1970s as an updated version of the FTb. It uses the Canon FD lens mount, features a TTL CdS metering system and the Quick Loading (QL) film loading mechanism, and was positioned as a mid-range manual-focus SLR for enthusiasts.

Auction data for the FTbn QL is thin: a single UK saleroom hammer result from April 2024 sold the camera for £56 (wholesale level, before commission). On that limited evidence the value sits in the tens of pounds rather than the hundreds in today's market, but a single data point is not enough to define a reliable range, and condition, working meter, and inclusion of a clean FD lens will all materially affect what an FTbn QL sells for.