Pentax SMC Pentax-F AF Adapter 1.7X User Manual

Lists SMC Pentax-A (KA mount) and SMC Pentax and Pentax-M (K mount) lenses compatible with the adapter.

Advises against using the adapter as a rear converter or combining it with one.

Details lens construction, magnification, focusing, diaphragm/metering, and mount types.

Instructions for attaching the adapter to the camera and lens, and for removing them.

Steps for setting the camera to autofocus mode and achieving focus with the adapter.

Explains how aperture values are compensated for A-type lenses and how to calculate actual aperture.

Details the focusable range based on lens focal length and distance scale settings.

Guidance on adjusting focus when the in-focus signal does not appear or shows front/back focus.

Lists specific SMC Pentax A, M, and SMC Pentax AF lenses that work with the adapter.

Identifies lenses that cannot be used with the AF adapter and may cause damage if forced.