PDA

View Full Version : Dry glass Plates?



Drew Bedo
31-Mar-2011, 14:17
Is there any source for dry glas plates? I mean glass plates coated with a dry emlusion and sensatized?

domaz
31-Mar-2011, 14:18
I saw some at an Antique shop. They were opened and exposed to light so probably worthless. Unless you mean to recoat them?

DarkroomDan
31-Mar-2011, 17:25
I don't know of a source for new dry plates but there is a lot of information available on making them yourself if you that appeals to you. Searches here on LFPF and also on APUG should get you information on coating glass with commercially available liquid emulsions. Denise Ross has a website called The Light Farm (http://www.thelightfarm.com/) that has a great deal of information on making your own emulsions for papers, film, and dry plates. I am gearing up to make some 5x7 plates using information I acquired from Denise's site.

Dan

Drew Bedo
1-Apr-2011, 08:23
Thanks for the info on Light Farm. If i cannot find a prepared dry plate from a manufacturer, I'll have to go this rout. I really don't want to coat plates though.

I am exchanging e-mails with a company that makes plates for Laser Holography. We'll see where that leads.

Bill_1856
1-Apr-2011, 09:14
Why?

cyrus
1-Apr-2011, 09:44
Actually I would be interested in this too. I have an old Rolleiflex that has a glass plate back, and several plates. In fact film ever runs out, I want to know how to coat my own glass

Drew Bedo
2-Apr-2011, 08:30
Bilkl:

I would like to avoid the mess of working with this stuff in the dark. I want a standard material that I know the properties of. Our home does not lend itself to converting any space into a photolab . . .it has been discussed in several family meetings over the years.

jnanian
2-Apr-2011, 08:50
hey drew

you can bypass the making your own emulsion part
and buy some liquid light and easily coat glass or plastic
yourself. a cheap paint brush, a blow dryer and plates
its fast so you just need an empty film box and some wax paper to interleave them
no lab needed ...

http://www.alternativephotography.com/wp/processes/gelatin-silver/silver-gelatin-dry-plate-process

good luck getting them premade + cheap
when kodak made tmx 4x5 plates they cost more than 400$ a box of 100,
which was more than 4x what film cost.

have fun !
john

Bill_1856
2-Apr-2011, 09:38
Bilkl:

I would like to avoid the mess of working with this stuff in the dark. I want a standard material that I know the properties of. Our home does not lend itself to converting any space into a photolab . . .it has been discussed in several family meetings over the years.

What's wrong with using sheet film? Glass plates and film both have to be processed in a wet darkroom.

Brook Martin
2-Apr-2011, 10:00
The upside to factory made glass plates is situations where very exact enlargement factors are involved. High mag transmission electron mircoscopy comes to mind. I use to develop tmax 100 quarter plates for micrographs where the shrinkage of estar base material was unexceptable for the parameters.

For making pictures its hard to see an upside, unless of course you just want to do it.

MDR
3-Apr-2011, 06:54
A friendly hello from Austria
The german online Photo store Lumiere sells Ortho Micrograph Plates , sensitivity is around ISO 40, they are quiet expensive approx 83 Euros for twelve 9x12cm Plates.
Lumieres Homepage:http://www.lumiere-shop.de/index.php?page=categorie&cat=240
I believe the plates are of Russian origin. Ilfords/Harmans Nuclear Division seems to produce glassplates as well. The American Company Microchrometechnology took over Agfas glassplate Production. As far as I can see Microchrome technology offers the largest selection of Dryplates. Their Homepage is: http://www.microchrometechnology.com/products_photoplates.php

Good Luck with your search.