Search found 95 matches

by admin_jsfisher
Wed Oct 05, 2016 3:09 pm
Forum: General Holography
Topic: Ain't nobody doing a anything?
Replies: 17
Views: 5564

Re: Ain't nobody doing a anything?

Din wrote:
jsfisher wrote:There was a discussion (sometime ago, now) about using ferro-cyanide chemistry in place of dichromates.
You may be mixing apples and oranges.
You are correct. I was mis-remembering. It was ferric ammonium oxalate: http://holowiki.org/wiki/Experimenter%2 ... um_Oxalate
by admin_jsfisher
Wed Oct 05, 2016 7:33 am
Forum: Российский Форум
Topic: Цветной мультиплекс
Replies: 2
Views: 4876

Re: Цветной мультиплекс

For the Russia-impaired (including me):
Color multiplex

Here's what happened to the two lasers 532 and 633, its emulsion, silver.
by admin_jsfisher
Mon Sep 26, 2016 8:29 pm
Forum: Events, announcements, and news
Topic: Acoustic holography
Replies: 2
Views: 13061

Acoustic holography

This sounds like fun (pun intended). http://www.smithsonianmag.com/smart-new ... 63/?no-ist
by admin_jsfisher
Sat Jul 23, 2016 8:38 am
Forum: DCG
Topic: Question about dichromate
Replies: 7
Views: 6844

Re: Question about dichromate

As Lobaz indicated, it is a personal decision. Chemicals should always be treated with respect, but a full-face respirator seems way over the top. If you have concerns of inhaling dichromate dust during the measuring and mixing process, a simple paints mask I'd think sufficient. Skin contact can be ...
by admin_jsfisher
Fri Jul 22, 2016 10:18 pm
Forum: For Sale / Trade
Topic: Coherent ring laser 532-100 like New!
Replies: 4
Views: 2260

Re: Coherent ring laser 532-100 like New!

Phil,
Good to see you again. It's been a while.
by admin_jsfisher
Sat Jul 09, 2016 8:20 pm
Forum: Gallery
Topic: Skulls!!
Replies: 4
Views: 5440

Re: Skulls!!

Matthias Soeliner posted a pair on Facebook (blech!!), too:


13521851_1759443604274246_2339733706220337429_n.jpg
13521851_1759443604274246_2339733706220337429_n.jpg (7.79 KiB) Viewed 5439 times
13537504_1759443614274245_5101257901511959485_n.jpg
13537504_1759443614274245_5101257901511959485_n.jpg (23.76 KiB) Viewed 5439 times
by admin_jsfisher
Sat Jul 09, 2016 8:18 pm
Forum: Gallery
Topic: Skulls!!
Replies: 4
Views: 5440

Skulls!!

Bob Hess posted over in Facebook land (blech!!!) about holograms of human skulls. Here is what he had to say: I have two old holograms of human skulls made in DCG, and both are 5x7" plates. Obviously different skulls. I wonder how many variations of this hologram are out there? I know the skull is p...
by admin_jsfisher
Wed Jul 06, 2016 6:10 pm
Forum: For Sale / Trade
Topic: Want to buy: a hologram to demonstrate the divisibility principle
Replies: 7
Views: 2022

Re: Want to buy: a hologram to demonstrate the divisibility principle

Oh, and by the way, FinnAgain Zero, welcome to the Holography Forum.

The regulars don't tend to post a lot on their own, but they are generally great at responding to someone else's query. Feel free to be that someone else.
;)
by admin_jsfisher
Wed Jul 06, 2016 6:04 pm
Forum: For Sale / Trade
Topic: Want to buy: a hologram to demonstrate the divisibility principle
Replies: 7
Views: 2022

Re: Want to buy: a hologram to demonstrate the divisibility principle

Have a look at this video: https://www.youtube.com/watch?v=tjWznlGst9M

At the 1:15 mark and then at the 13:00 mark, TJ demonstrates what I think you are looking to do. Yes?
by admin_jsfisher
Mon Jun 20, 2016 9:35 pm
Forum: For Sale / Trade
Topic: Photopolymer Film - Red Sensitive
Replies: 3
Views: 1653

Re: Photopolymer Film - Red Sensitive

Sergio,

Your post prompted me to visit your website. I see it has been redone. Nice improvement. On the other hand, I also noticed that there was no longer a page for ordering evaluation samples. Is that a thing of the past now?

/JSFisher