Re: Making progress with my weird RB67.
"Ric Trexell" <rictrexell@vbe . com > wrote in message
news:13doc82khb0p15b@corp.supernews . com ...
> Ok, I found out what you guys were talking about with the question I had
> earlier about my multi-exposure thing not working on my camera. This
> weekend I did a light seal repair job on the thing and with the exception
> of
> those grooves by the pressure plate, I guess I'm done. I didn't do those
> because I'm not sure they are supposed to have anything in them, but
> according to this page, I guess they are.
>
> * home.att . net /~colgoff/cameraback.html
>
> So anyway, last night I tested my work by putting the lense on "T" and
> shinning a flashlight in the lense in a dark room. I didn't see any light
> leaks. Then I was playing with it and with the back in the vertical
> position I couldn't trip the shutter. I looked in the manual and on the
> last page it said that you have to have film in it. I had an old roll of
> practice 120 film so I put that in and sure enough it works, but only in
> the
> vertical position. When I turn it to horizontal, I can wind the shutter
> and
> trip the film all the time. So now I'm stumped. I looked at the pins and
> all the connections but nothing is bent or seems to not work. This has me
> puzzled.
>
> So my questions are, do you...
> 1. Agree with the pictures in the above webpage that show light leak
> material in those tiny grooves by the pressure plate? And wouldn't that
> prevent the pressure plate from sitting correctly so that it would throw
> off
> the focus?
>
> 2. Do you have any idea why my camera's multi-exposure prevention works
> with
> the back in the portrait position and not in the landscape position?
>
> Any help is certainly appreciated. Ric in Wisconsin.
>
>
1. Yes there is seal material in the grooves near the pressure plate. The
groove goes all around the back but the seal stop where will be aligned the
hinge on one side and door lock on the other side.
* w w w .kyphoto . com /classics/seal/RB67_FilmBack.pdf
2. The back is working the same in both positions. The right (bottom in
portrait) hole is the multi-exposure prevention, and the left (top in
portrait) hole is use to indicate that the frame is exposed.
Remove the back, and as you press the shutter release, a pin is coming out
at the right top (right bottom in portrait).
Remove the rotary plate, and as you press the shutter release a pin is
coming out at the right bottom. If you enter a paper clip in the middle of
the right side the pin will now come at the right top. Look at the rotary
plate and you will see the pin that goes where you put the paper clip. It
lock/unlock as you turn the rotary plate.
But you are probably confused by now.
I could send you a video if you want.
Michel