Yashica 635 - Double Exposure

It's quite simple really, although the instruction manual is quiet on this subject, Kai. To normally take a photo, you wind the film, cock the shutter, then push the shutter release button. For a double exposure, because the cocking lever is external, you just cock the shutter again without winding the film, which allows another actuation of the shutter before winding the film. If you need to change exposure, you cannot change the shutter speed after cocking the shutter.

If you don't have a 635 instruction manual, you can get one at www.butkus.org/chinon/

It would be more likely that your exposures would be good doing the side-by-side by using the half blocking technique. A quick look on eBay found plenty of such filters, but they were all too big to mount on a Bay 1. So what you could do is use a clear filter, like a UV Haze, and mask it off with electrical tape. Or, get a Bay 1 to Series V adapter, tape up a Series V UV filter, and just rotate it between exposures. That would be quicker between exposures since you wouldn't have to take time to clean the filter, and the light should then be the same. In your previous attempt, you may not have had the mask directly in the center.

Good luck, Kai.

PF