Contax RTW Power Pack projector So don't get this lens

So don't get this lens if you're expecting a normal wide-angle lens

plus a 14x14x22cm compartment accessible from the rear or the top of the bag

The Pentax Rear Converter-A 1

and a built in remote flash sensor for off-camera use with compatible Speedlites

Contax RTW Power Pack projector So don't get this lensPower 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 battery inserts, too (inserts are not included). In excellent condition, with cable. Belt case not included.