Quater -glass plate holders

[Schlapp]

I'mhaving fun with my Ilford glass plates at the moment. The trouble is that the holders I have are scratching the plate surface sometimes after exposure. Any advice gratefully recieved.

 

[Jim Jones]

Are your darkslides warped and scraping against the emulsion?

 

[Schlapp]

Are your darkslides warped and scraping against the emulsion?

I think perhaps the metal holders i am using are 9x12 and as a result, it's the darkslide that is holding the plate in. I think what I require are proper 1/4 plate metal holders!

 

[gordrob]

Where does one find glass plates these days?
Gord

 

[Schlapp]

Where does one find glass plates these days?
Gord

I old camera shops with very old stock !

 

[gordrob]

Is the emulsion still good and what do you do about developing them. Do you need to entend the development time or add anti fog to the developer. The reason I am interested is that I have some HP3 glass plates I was going to expose in the next couple of weeks.
Gord

 

[Schlapp]

Is the emulsion still good and what do you do about developing them. Do you need to entend the development time or add anti fog to the developer. The reason I am interested is that I have some HP3 glass plates I was going to expose in the next couple of weeks.
Gord

Exposed them at 25 asa, developed in Perceptol. First image with Hp3 here; http://www.flickr.com/photos/schlapp/141372406/

 

[gordrob]

That is an incredible print coming from plates that are 40 - 50 years old. I guess I have a project for this weekend - I figured on a ASA reduction but wasn't sure how low to go - it will give me a good starting point.
Thanks
Gord