Dan Daniel
Well-known
And not what you might think, given all the talk about how weak the back of a Rolleiflex can be when mounted on a tripod!
First, a sample of the leak: right near the bottom, flares coming in from both edges. And a bit below and above center, more flares. The leak is visible in the edges of the film, so it isn't coming from the front of the lens box. If you place the film back in the camera, both flares match the 'back side' of two silver rollers- one right near turn to the film gate, and the 'Automat' mechanism roller. This points to the leak happening from somewhere towards the front of the camera in the supply film spool area, light coming in and bouncing off/around the silver rollers and fogging the film.
The camera is a Rolleiflex 2.8 Tessar, often called a 2.8A although the A was never a Rollei designation. The back is the earlier design without the light trap wall to the inside of the body lip. It had yarn around the edge as a light seal. I replaced this with foam. But after a series of attempts to seal the back, the leak kept happening.
The source: the tripod socket. Someone obviously ran a long screw into the hole and cracked open the top of the aluminum tripod mount (NO, not me! I've had the camera a short time and have never mounted it on a tripod). Here are some photos:
I thought I'd put this out there in case anyone has troubles tracking down a light leak on older Rolleis.
Any suggestions for sealing this? It's not a tight fit with serious interference concerns. I was thinking wiping some JB Weld epoxy into the crack and then black paint or vinyl tape on both sides as a security light killer.
Edit: In poking around to apply an epoxy seal, the cap section simply let go and fell away. I have glued in a cap of brass sheet stock to seal the hole.
First, a sample of the leak: right near the bottom, flares coming in from both edges. And a bit below and above center, more flares. The leak is visible in the edges of the film, so it isn't coming from the front of the lens box. If you place the film back in the camera, both flares match the 'back side' of two silver rollers- one right near turn to the film gate, and the 'Automat' mechanism roller. This points to the leak happening from somewhere towards the front of the camera in the supply film spool area, light coming in and bouncing off/around the silver rollers and fogging the film.
The camera is a Rolleiflex 2.8 Tessar, often called a 2.8A although the A was never a Rollei designation. The back is the earlier design without the light trap wall to the inside of the body lip. It had yarn around the edge as a light seal. I replaced this with foam. But after a series of attempts to seal the back, the leak kept happening.
The source: the tripod socket. Someone obviously ran a long screw into the hole and cracked open the top of the aluminum tripod mount (NO, not me! I've had the camera a short time and have never mounted it on a tripod). Here are some photos:
I thought I'd put this out there in case anyone has troubles tracking down a light leak on older Rolleis.
Any suggestions for sealing this? It's not a tight fit with serious interference concerns. I was thinking wiping some JB Weld epoxy into the crack and then black paint or vinyl tape on both sides as a security light killer.
Edit: In poking around to apply an epoxy seal, the cap section simply let go and fell away. I have glued in a cap of brass sheet stock to seal the hole.