Uploaded July 2020 | Updated September 2026, 10 hours ago

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Today's episode isn't going to be as technical as others on this channel, but I'd like to share what I've been up to. Through the many hiccups that 2020 has presented me with, I've been chipping away at a fascinating process that has big potential in large format. Taking color negative darkroom papers, known as RA-4 process papers, and exposing them in-camera (through filtration) and performing reversal process development to get a color positive! I've got a long way to go, but here's what I've got so far into playing around with RA-4 reversal.

00:00 LFF Intro
2:06 RA-4 Reversal Description
4:33 RA-4 Outdoors Shoot
6:40 Darkroom Processing
8:05 Mat's Results So Far
9:05 Polaroid 8x10 Replacement?

Credit where credit's due. Check out the guys that inspired me to get into the process here:

youtube.com/watch?v=OLoxxwzlAk4

youtube.com/watch?v=ry6ycSgT8g8

Questions? Send me an email: largeformatquestions@gmail.com

Content by Mat Marrash: matmarrash.com

#largeformat #filmphotography