Technical Section
This section contains some articles on various aspects of laboratory and archive work. Please feel free to contact me for further information, to suggest amendments or further articles. Email me at brianrpritchard@aol.com..
Technical Section
Pos from Nitrate Neg
Fine Grain Pos From Nitrate Neg
↓
Pos Neg Pos
↓
Pos Neg Pos Neg Pos
Light Fine Grain From Nitrate Neg
Dupe Neg From Fine Grain Pos
Pos Neg Pos Processed through Neg Bath