Pentax MX MX Manual - Page 32

USING SCREW-MOUNT TAKUMAR LENSES Conventional screw-mount Takumar lenses (both Super-Takumar and SMC Takumar) can be easily mounted onto your camera by attaching them first to a Mount Adaptor K. However, when Adaptor K is used, the following is true: . Due to the difference in coupling systems, the automatic diaphragm will not function. . Full-aperture metering lenses will function as stop-down metering lenses. a How to Use Mount Adaptor K Screw the conventional Takumar lens into the Mount Adaptor K. 2 Attach the Adaptor/lens unit to the camera body by aligning the red dots f and © , and turning the lens clockwise until it locks with a click. (This takes slightly less than a quarter of a revolution.) 3 To remove the lens, leaving the Mount Adaptor K attached to the camera body, simply unscrew the lens counterclockwise. Other screw-mount 30•