----- Original Message -----
From: "Carlos Manuel Freaza" <cmfreaza@xxxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Saturday, August 20, 2005 7:25 PM
Subject: [rollei_list] Re: Bellows on 2.8D?...an answer from
Mr Prochnow
The thing in the Rolleicord appears to be a felt bushing. I think a similar arrangement is used in MX and earlier Rolleiflexes. I've had my Old Standard apart completely. It uses a different arrangement for focusing than later Rolleis but shares a very similar sort of light trap. The lens has tube around it. This tube goes through a felt bushing which is fastened to a hole in the body of the camera. On the 2.8E this appears to have been replaced with a cloth ring which is cemented to something at the rear of the shutter and to the clearance hole in the body of the camera.Yes Richard, I have seen again the Rolleicord IV and really it has a membrane or diaphragm that appears when you put the focus mechanism at the minimum focusing distance, it has a reddish color and it's very different regarding the system for the 2.8C, while the 2.8C is similar to your 2.8E, (it moves following the lens movement as Todd explained), the Rolleicord IV membrane or diaphragm(there are no "bellows" here) is invisible till you advance the lens to the minimum focusing distance (0.80m), that was the reason I did not see it before. As Prochnow wrote, the diaphragm, (or short "bellows" or membrane or whatever) looks different according each "calculation". The Rollei TLR cameras anti-reflection system are very effective according my experience; of course, as you wrote, it is not perfect if you shoot into the sun, but for this case it sometimes helps to obtain a bit of flare control enough for some detail in the photo. Perhaps that issue about the roller reflection seen in some cameras has something to do with problems for this "diaphragm".-
All the best Carlos
--- Rollei List
- Post to rollei_list@xxxxxxxxxxxxx
- Online, searchable archives are available at //www.freelists.org/archives/rollei_list
