The converter comes with two covers for both ends and a case. Its original price was $79.95 as the prince tag marked on the box. For the new converters with different mounts, their prices might be close. However, my online search show that the used converter with KAR mount (with 7 pins, for both Pentax KA and Ricoh P) is more expensive since it can be easily used on Pentax DSLR with manual focusing.
|The two scales in blue and white are for 50mm lens |
set at the closest and infinite focus distances
They can be used with lenses or zooms, but its manual is needed for how to convert the parameters. Therefore, I scanned the manual and posted it here.