>>3908673Pentax's infamous mirror adapter in the picture.
They advertised it like this in the 70s:
>An interesting adapter for detective photographers, this allows you to take photographs by NOT pointing your camera and lens to your subjects. Fits the Takumar 200mm f/3.5, Super-Takumar or SMC Takumar 200mm f/4 and Tele-Takumar 300mm f/6.3 lenses only (From Spotmatic II Manual, ~1972)>Right Angle Mirror Adapter. Fits telephoto lenses having 58mm filter diameters. Cat. No. 7096 . $118.00 (from Honeywell Pentax Cameras Lenses and Accessories, Nov 1973)>The Mirror Adaptor consists of a 45° reflex mirror which enables the user to take candid or clandestine shots through a window in the side of the adaptor. (The front of the adaptor has a dummy lens.) This Adaptor fits the SMC Pentax 200mm f/4 lens. (From Asahi Pentax Lenses and Accessories, ~1976)Spiratone offered their own version too.
