The Rolleiflex Automat I (Model 1) is a medium-format twin-lens reflex camera made by Franke & Heidecke of Germany, taking 6x6cm frames on 120 roll film. It introduced automatic first-frame sensing and combined film advance with shutter cocking, positioning it as a professional-grade TLR when launched in the late 1930s.

At recent UK auction, hammer prices for the Rolleiflex Automat I have sat in a narrow band of roughly £110–£130, with a median around £120 based on the limited records to hand. As of 2026, this places the model at the more affordable end of the prewar Rolleiflex market, though condition of the taking lens, shutter timing and leatherette covering all influence what an example sells for.