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View Full Version : Suitable replacement ground glass for 1880's Chapman British camera?



antonroland
13-May-2012, 07:29
Any ideas, folks?

Would be much appreciated

desertrat
13-May-2012, 08:00
The GG on a camera that old may not match any modern standard size. One solution is to measure the GG and inquire with people who custom make them. Even if it doesn't match any of their standard products, some sellers will custom cut one to size for you.

Another alternative is to make your own. There are threads here describing the process. A glass cutter doesn't cost very much, and with a little practice on scrap pieces of glass you can cut the glass to size pretty accurately. Then the glass can be ground with abrasives used by amateur telescope makers who grind their own mirrors. I think there may be a few commercial cleaning products that contain abrasives about the right particle size.

Did you say in a previous thread the GG on your camera had been replaced by a piece of clear glass? If so, you can grind that and make it into a proper focusing screen.

rince
13-May-2012, 08:52
Any ideas, folks?

Would be much appreciated

Hi, i just bought a custom made ground glass from Steve Hopf, I can only highly recommend him. The ground glass I bought from him is about 1.5 stops brighter than the original and so amazingly even. I am just a very happy customer and not in any way associated with Steve' business. Have a look at his site http://www.hopfglass.com/ .

Richard Wasserman
13-May-2012, 08:54
Hi, i just bought a custom made ground glass from Steve Hopf, I can only highly recommend him. The ground glass I bought from him is about 1.5 stops brighter than the original and so amazingly even. I am just a very happy customer and not in any way associated with Steve' business. Have a look at his site http://www.hopfglass.com/ .

+1 for Mr. Hopf!

antonroland
13-May-2012, 11:18
Thanks everyone for your responses, checking out that site right now!