Search found 166 matches

by jrburns47
Wed Jan 16, 2019 11:42 pm
Forum: General Holography
Topic: Looking for Larry Lieberman holograms
Replies: 2
Views: 5419

Re: Looking for Larry Lieberman holograms

Have you checked with Abe Rezny? He’s on Facebook. I know he had at least two although he may have sold them.
by jrburns47
Mon Dec 24, 2018 9:17 am
Forum: AgX
Topic: Silver Halide Recipe / Formula please
Replies: 8
Views: 16498

Re: Silver Halide Recipe / Formula please

I’ve never coated my own plates or film with silver halide mainly due to concerns re archival quality and adhesion. Virtually all of my work from 70s and 80s done on Agfa 8E56 is holding up well so far. I’ve stayed away from DCG for the same reason although Augie Muth may have solved the archival DC...
by jrburns47
Thu Nov 29, 2018 2:37 pm
Forum: Gallery
Topic: My First Holo
Replies: 6
Views: 9391

Re: My First Holo

Also didn’t work on iPhone but no problem. Saw it on my desktop- nice work.
by jrburns47
Wed Nov 28, 2018 3:55 pm
Forum: Gallery
Topic: My First Holo
Replies: 6
Views: 9391

Re: My First Holo

Won’t play on my iPhone 6+ with iOS 12...
by jrburns47
Tue Nov 27, 2018 4:30 pm
Forum: General Holography
Topic: Zero order quartz wave plate options?
Replies: 3
Views: 5146

Re: Zero order quartz wave plate options?

Apparently zero order type is less sensitive to temperature shift than multi order. I’m not combining 532nm beams. I’m changing over from disk based VBS to polarizing cube VBS for greater object beam stability and smoother/finer beam ratio control. Two different setups - one with about 100mw of powe...
by jrburns47
Mon Nov 26, 2018 9:58 am
Forum: General Holography
Topic: Zero order quartz wave plate options?
Replies: 3
Views: 5146

Zero order quartz wave plate options?

I’m planning on putting together three 532nm polarizing cube beam splitter setups. I’m looking at three possibilities for zero order quartz half wave plates from Star Optic in China. The choice is between cemented, optically contacted, and air spaced. They’ll be used with up to 450mw of beam power. ...
by jrburns47
Thu Oct 04, 2018 12:07 pm
Forum: AgX
Topic: Flat bed scanner as dip coater?
Replies: 0
Views: 13575

Flat bed scanner as dip coater?

Has anyone here ever tried to recycle a flat bed scanner mechanism as a dip coater for plates or film?
by jrburns47
Sat Aug 04, 2018 3:16 pm
Forum: General Holography
Topic: questions about pepper ghost effects
Replies: 1
Views: 4626

Re: questions about pepper ghost effects

First, you are in the wrong place. This is a forum for true holography, not pepper’s ghost tech.
Regardless, here’s a link to find out more about how to create the pepper’s Ghost illusion:
https://www.google.com/amp/www.instruct ... _page=true
by jrburns47
Sat Jul 14, 2018 10:20 pm
Forum: Beginning Holography
Topic: Fundamentals of Photonics Volume 1
Replies: 28
Views: 18247

Re: Fundamentals of Photonics Volume 1

It’s sometimes hard to keep in mind today the mindblowing novelty of laser viewable transmission holograms today as seen almost 60 years ago. The fact that a 2D image could be projected from any piece of a laser viewable hologram was truly unique and amazing. People who grew up in physics with holog...
by jrburns47
Tue Jul 10, 2018 7:17 am
Forum: General Holography
Topic: Digital Holography
Replies: 15
Views: 8451

Re: Digital Holography

Wonderfully clear and simply explained. Thank you.