Color Reversal Process Part 2
18:15
RA 4 Reversal Filtration
30:37
Accurate Exposures With Harman Direct Positive Paper - Part 1
20:02
RA-4 Color Reversal Process, a Big Update! - Large Format "Friday"
31:51
Reversal Print Processing: A New Approach
14:07
Photography Secrets of Edward Weston's Darkroom
21:50
RA-4 Printing, pt 1: Tools and Materials
13:10
RA4 Reversal with large format cameras
10:06