[pure-silver] Re: Fog
- From: Shannon Stoney <sstoney@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Wed, 28 Sep 2005 11:58:24 -0500
----- Original Message ----- From: "Shannon Stoney" <sstoney@xxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, September 27, 2005 6:12 PM
Subject: [pure-silver] Fog
I have been shooting with a renovated Rollei TLR from the thirties.
Some of the exposures look fogged, but the fog does not appear to
be coming from a leak in the camera. It is only in the area where
the lens can expose the film. I wonder what is causing this? It
is not consistent on a given roll of film; it is only on a few
exposures usually. I wonder if it might have to do with the fact
that the lens is probably uncoated?
--shannon
I don't think its the lens but check it by shining a flashlight
through it while the shutter is on B (or T if its an olde enough
camera). The lens should be crystal clear. If it shows any haze
inside the haze will reduce contast a surprizing amount. However, it
will affect all frames. Usually this haze is easy to clean off but,
if its in the front cell, requires some disassembly.
Usually light leaks show up as streaks or bars in a part of the
image. If you are getting this check the back to see if its warped.
Also check along the inner edge of the upper part of the back, it
has a black yarn light seal. Both the "old standard" and later
Rolleis have this seal.
Also check for shiny areas in the camera box that could be
reflecting light from the lens
There is a very shiny area in fact, screwed to the back. I think
that might be the culprit. It is exactly the size of a frame of film
and it is exactly opposite the lens. What were they thinking? Could
this be a replacement part that was not painted black? I will paint
it as you describe below.
Thanks,
--shannon
. If the anti-reflection paint is missing somewhere replace it with
Krylon Ultra-Flat-Black, a very good light absorber. This material
is available only in spray cans so you must spray some into a small
container and use a brush to paint the camera. One way to look for
leaks is to tape a bit of white writing paper to the film back
plate, close the camera, and, while looking into the camera through
the lens, shine a strong flashlight around the back. It is extremely
unlikely that there is a leak on the front but it can be checked
simply by opening the back and shining a strong light around the
front.
Check the Ferdi Sutterheim's Rollei site at http://www.rollei-gallery.net/
You can identify the model from
http://www.mir.com.my/rb/photography/companies/rollei/rolleiflex/reflexmodel.htm
Also, consider joining one of the Rolleiflex mailing lists. I am
co-administrator of one at:
//www.freelists.org/list/rollei_list
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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