Front Surface Mirrors

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From: Sandy King (sanking@hubcap.clemson.edu)
Date: 05/16/00-08:52:45 AM Z


Also check out the Surplus Shed (http://www.surplusshed.com/lpm.html)
for front surface mirrors (and other surplus optical items). They
generally have a fairly extensive listing of such items.

Sandy King

>Just throwing my 2 pesos in here. Almost all rear view (outside) automobile
>mirrors are front surface. Maybe a trip to the local salvage yard might
>prove fruitful.
>
>Les
>
>Judy Seigel wrote:
>
> > On Mon, 15 May 2000, garimo wrote:
> > > I love all the possibilities. And I see how this how easily this one
> > > could/would work if all the necessities were in place. The main one I
> > > lack is the conveniently located wall. This old 5x7 enlarger was
> >
> > That's not a problem -- simply prop up a piece of plywood or hardboard (as
> > I recall I used stacks of bricks, or maybe it was books) at an appropriate
> > distance and pin the paper on that.
> >
> > The problem is more likely getting the front-surface mirror, which used to
> > be a regular darkroom item. Now that enlargers got so tall (& darkroom
> > stuff vanishes even as I write) maybe not. This is a ready made gizmo, no
> > need to "adjust" the angle. It sits on one side of its right angle, the
> > mirror is the hypoteneuse.
> >
> > A
> > |_ B
> >
> > The mirror goes from point A & point B.
> >
> > Judy
> >
> > > donated to the community college along with a lot of other things, but
> > > was so heavy (the base is cast iron/steel) several hundred pounds...
> > > and nobody wanted it bad enough to move it until I came along. It was
> > > free for the moving. I set it up between a couple other enlargers and
> > > have just recently started using it with reversed Tmax onto lith film
> > > for making larger negatives. It's a Eastman Autofocus enlarger. It has
> > > some mechanical movements which when it is focused is supposed to keep
> > > it at the same focus as it is raised or lowered. But I think due to
> > > it's age it is necessary to fine tune the focus after it's raised...
> > > and a grain finder that is ten to twelve inches taller than the one I
> > > have now will make the fine tuning so much easier than building another
> > > wall. ;-)
> > >
> > > Hmmm, another idea...the mirror would have to be precisely angled or
> > > the image shape would be distorted... hmmm, distorted... could be cool
> > > too...
> > > garimo
> > >


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