0.77x Reducer/Flattener for Esprit 120 (S20209)

Available from Cloudbreak Optics when we last checked. Sold from the shop’s own store; the price there is the one that counts.

34mm fully illuminated field but can handle full frame as well 95mm back-focus (55mm when back focus spacer and M48 ring installed) Drops f/ratio from native f/7 (840mm) to f/5.4 (647mm) Reduces exposure time by 68% compared to native f/7 Built-in 2" filter cell for mounting filters 3.18 x 2.12-degree field of view when used with a full frame camera 2.08 x 1.39-degree field of view when used with APS-C crop sensor