Internal filters for RB67?
I've assembled an RB67 kit with the 180, 140, 127, 65 and 50 lenses, the extension tubes and two backs. I'll probably get rid of the 127 now that I have the 140 and eventually try to find a 90. I think all these lenses take 77mm front filters. I plan to use the camera for B&W photos. Getting a set of filters (yellow, orange, red, green and deep red for IR film) is gonna cost some bucks. I was wondering if anyone has had any experience with attaching a filter holder behind the rear lens element for small filters such as are used on some 500mm mirror lenses for 35mm. It seems like this could be done pretty easily with some glue that would be reversible easily. I have a lot of small filters, so I'd probably not have to get anything except perhaps series VI filter holders or something similar. I wonder if anyone has tried this or it there's any particular reason that I shouldn't attempt this.