Contax RTW Power Pack lens mount_M42 but these do not have

but these do not have an effect on the imaging

You probably don't want to tuck this into your camera bag just in case- it weighs 4

5 Prakticar lens and a built in flash

including a small ding in the filter ring which does not affect filter mounting

Contax RTW Power Pack lens mount_M42 but these do not havePower your Contax Real Time Winder externally with this power pack. Toss in the AA battery insert from your Real Time Winder and hook your camera up with the included power cord. Why would you do this? Well, if it's cold out, you can stash this holder in a pocket and prolong your battery life. It's quicker to swap batter inserts, too (inserts are not included). In good condition, with some splitting in the finish of the external vinyl case.