From: laran on
Hello,

broke the red plastic, cam-shaped red slide for my rolleimatic enlarger.
Can't remember what it is called but it allows me to focus without
exposing my image. I anticipate that finding a replacement will be
extremely difficult so I would like to cut out a new one.

Question: is the red slide just lexan? acrylic? What would be suitable
to use for an enlarger? And if possible, sources? In canada???

thanks
Laran
From: K W Hart on

"laran" <ArtPissed(a)gmail.com> wrote in message
news:gtUvm.75780$nQ6.43225(a)newsfe07.iad...
> Hello,
>
> broke the red plastic, cam-shaped red slide for my rolleimatic enlarger.
> Can't remember what it is called but it allows me to focus without
> exposing my image. I anticipate that finding a replacement will be
> extremely difficult so I would like to cut out a new one.
>
> Question: is the red slide just lexan? acrylic? What would be suitable to
> use for an enlarger? And if possible, sources? In canada???
>
> thanks
> Laran

I never got into the habit of using the red filter. Depending on the type of
paper you use, it could fog the paper; definately if you use color paper.
Unless you are using a very thick base paper, it shouldn't make much
difference if you focus directly onto the easel. If you are concerned about
the focus being different due to the thickness of the paper, focus on the
backside of an old piece of the same thickness paper.

If you are really set on replacing the filter, the material is not so
important as the color or the optical quality. It must be of a particular
color so that it doesn't fog the paper, and it should be of an optical
quality that it won't distort the image.


From: darkroommike on
On Sep 27, 8:39 pm, laran <ArtPis...(a)gmail.com> wrote:
> Hello,
>
> broke the red plastic, cam-shaped red slide for my rolleimatic enlarger.
>    Can't remember what it is called but it allows me to focus without
> exposing my image.   I anticipate that finding a replacement will be
> extremely difficult so I would like to cut out a new one.
>
> Question: is the red slide just lexan? acrylic?  What would be suitable
> to use for an enlarger?  And if possible, sources?  In canada???
>
> thanks
> Laran

Some multigrade or polycontrast under the lens kits also have a red
filter, or you could use a dark red camera filter sized to fit your
enlarger lens or a 3x3 dark red filter in the filter drawer of your
enlarger. When I say dark red I mean a Wratten 29 or at least a 25.
Will NOT work for color (or panchromatic BW papers) and I would run a
fog test on all variable contrast papers.

I prefer to not use a filter and focus with a grain magnifier set on
top of a piece of paper the same type as I am printing on and I stop
down before focusing (I have one lens with a bit of focus shift as it
is stopped down).
From: Richard Knoppow on

"laran" <ArtPissed(a)gmail.com> wrote in message
news:gtUvm.75780$nQ6.43225(a)newsfe07.iad...
> Hello,
>
> broke the red plastic, cam-shaped red slide for my
> rolleimatic enlarger. Can't remember what it is called but
> it allows me to focus without exposing my image. I
> anticipate that finding a replacement will be extremely
> difficult so I would like to cut out a new one.
>
> Question: is the red slide just lexan? acrylic? What
> would be suitable to use for an enlarger? And if
> possible, sources? In canada???
>
> thanks
> Laran

You may want to join one of the Rolleiflex mailing
lists, one is at Freelists and the other at Yahoo.
I think its possible a bit of Rubylith, available at
art supply stores, may work to replace the original filter.
However, I've never used the red filter on an enlarger. I
use a scrap of paper the same thickness as the paper I am
printing on under the grain focuser. This is probably not
necessary due to the depth of focus is more than sufficient
to compensate for the paper thickness. The brighter image
will make focusing much easier. About the only time I use
the red filter is for complex dodging or burning in.



--
Richard Knoppow
Los Angeles, CA, USA
dickburk(a)ix.netcom.com


From: Thor Lancelot Simon on
In article <dda3ba55-24fc-4a43-b067-4648b0e24704(a)l9g2000yqi.googlegroups.com>,
darkroommike <darkroommike(a)gmail.com> wrote:
>On Sep 27, 8:39�pm, laran <ArtPis...(a)gmail.com> wrote:
>> Hello,
>>
>> broke the red plastic, cam-shaped red slide for my rolleimatic enlarger.
>> � �Can't remember what it is called but it allows me to focus without
>> exposing my image. � I anticipate that finding a replacement will be
>> extremely difficult so I would like to cut out a new one.
>>
>> Question: is the red slide just lexan? acrylic? �What would be suitable
>> to use for an enlarger? �And if possible, sources? �In canada???
>
>Some multigrade or polycontrast under the lens kits also have a red
>filter, or you could use a dark red camera filter sized to fit your
>enlarger lens or a 3x3 dark red filter in the filter drawer of your
>enlarger. When I say dark red I mean a Wratten 29 or at least a 25.
>Will NOT work for color (or panchromatic BW papers) and I would run a
>fog test on all variable contrast papers.

A Wratten 29 should work, but a piece of Rubylith will be cheaper. They
do still make Rubylith, I'd hope -- but I have to admit I can't see why...

--
Thor Lancelot Simon tls(a)rek.tjls.com
"Even experienced UNIX users occasionally enter rm *.* at the UNIX
prompt only to realize too late that they have removed the wrong
segment of the directory structure." - Microsoft WSS whitepaper
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