Automega E3 Glass Negative Carrier Needs New Anti-Newton Glass

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Originally Posted by Tin Can

I don't see Focal Point on eBay either. There is a new company however offering custom cuts.

Oren's link does open a 2012 FP page, but then the purchase link is dead.

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Could you post more info on this source? Thanks

I have not used any source. I got mine in a Darkroom buy out.

Search! This is only one of many. No recommendation as I have not bought.

https://www.knightoptical.com/stock/...ass-diffusers/

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Originally Posted by Pieter

Could you post more info on this source? Thanks

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Here's another source I found online but have not used. They're in NJ.
http://www.glassdynamicsllc.com/anti_newtonring.html

I discovered fpoint was out of business last month. I had plans on cutting down some spare Durst 5x7 AN glass to 4x5 for some Omega carriers in need of new glass. I discovered the Omega D5500 needs about a 4mm tapered edges to fit in the carrier, so I thought 'I'll just get the glass from fpoint, I can't make that taper.'

If course I wound up having to cut down the 5x7 glass anyway and it turned out that I was able to taper the edges of the glass to the correct degree using the Dremel diamond bit.
I did it with running water on the glass and a wet sponge holding the glass from below. It worked fine!

The 5x7 glass, was damaged, so no good for 5x7 any more.

I also took the damaged 4x5" glass from the Omega carriers and cut a clean piece of 6x6cm AN glass for my Philips enlarger. That one only needed rounded edges which was accomplished with wet sand paper (and somewhat time consuming).

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have you contacted a local glass company, they *might* be able to help

Lots of good ideas here!

I'm buying some old Omega E parts from Glenn Evans, and I inquired about having him rebuild this Omega E-3 5x7 glass carrier unit. I don't have all the parts, he will have to make the clips, etc. So the carrier is on it's way to Glenn. He had built a number of custom things for me in the past.

I do have the original instruction book (from 1947) coming here soon.

https://live.staticflickr.com/65535/...8098bd72_z.jpgAutomega E3 by Nokton48, on Flickr

https://live.staticflickr.com/65535/...1a4d3e7243.jpgAutomega E3 Instructions by Nokton48, on Flickr

You have to have some experience cutting this kind of glass, and the right tooling. Local glass shops do not carry optical AN glass; and I'm skeptical about that Glass Dynamics product. We're talking about enlarging here, not architectural lighting. Knight Optical looks interesting, but they list only 3mm thick, which might be too thick for some 4x5 and 5x7 carriers. Let Glenn figure it out; he knows what he's doing.

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As for enlargers, we can supply direct replacement pieces for DeVere, Durst, Saltzman, Omega, Beseler, Zone VI, and others. Please just let us know.

We are also happy to answer any questions you may have. Please call or write.

SCAN-TECH
5647 Hollywood Boulevard
Los Angeles, CA 90028
e-mail: sales@scan-tech.net
323 798 9201

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Originally Posted by Drew Wiley

...I'm skeptical about that Glass Dynamics product. We're talking about enlarging here, not architectural lighting...

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Drew, their website does offer optical glass and has this to say:

Glass which has been treated usually roughened very slightly to prevent Newton's rings from forming is commonly called Anti-Newton glass. It is most often used with film and negative carriers in photographic enlargers.

If you look at who they're marketing to, it doesn't exactly inspire me in this case, certainly not the expression, "roughened". That can be done; but it's not how you want it done for our kind of use. A sandblasted effect is not good. Glass for enlarging has to be very carefully made for that specific purpose. Original Omega and Durst AN glass was excellent. Focal Point glass fine for big film sizes and scanners, but not ideal for small film in my opinion.