Search found 275 matches
- Tue Dec 25, 2018 7:03 am
- Forum: AgX
- Topic: Silver Halide Recipe / Formula please
- Replies: 8
- Views: 12488
Re: Silver Halide Recipe / Formula please
For over 20 years, I have been using only my silver halide emulsion. Synthesis and watering do yourself on the glass and film. The main wavelengths are sensitized at 633 nm, 532 nm and 488 nm. I do and color. Some holograms on this material can be seen. https://www.ebay.com/sch/s_m_a_k/m.html?_nkw=&...
- Mon Dec 17, 2018 3:28 am
- Forum: Beginning Holography
- Topic: Buzzing HeNe laser
- Replies: 7
- Views: 11159
Re: Buzzing HeNe laser
What is the length of the resonator tube? It is possible that the power supply operates in the ignition mode. not enough working current 11 ma for work.I don’t recommend it for a long time, the power supply may burn or a high voltage will be blown somewhere, and then a high voltage will constantly b...
- Tue Nov 13, 2018 4:57 am
- Forum: For Sale / Want to Buy / Trade
- Topic: RGB laser engine , with wired drivers
- Replies: 23
- Views: 23906
Re: RGB laser engine , with wired drivers
Hello
What is the polarization of all three lasers?
Is everyone the same?
Valery
What is the polarization of all three lasers?
Is everyone the same?
Valery
- Sun Oct 07, 2018 1:55 pm
- Forum: For Sale / Want to Buy / Trade
- Topic: Looking for spatial filters
- Replies: 6
- Views: 4783
Re: Looking for spatial filters
But now I have stopped using spatial filters and only use homemade lenses, they are much easier to clean and install. All my holograms are made like this.
https://holographyforum.org/forum/viewt ... =19&t=8891
https://holographyforum.org/forum/viewt ... =19&t=8891
- Sun Oct 07, 2018 1:50 pm
- Forum: For Sale / Want to Buy / Trade
- Topic: Looking for spatial filters
- Replies: 6
- Views: 4783
- Mon Sep 24, 2018 1:49 am
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8103
Re: Troubleshooting : emulsion peeling off
All these holograms are made in GP-2 without bleaching !!Hey by the way Valéry I think I just ordered your telescope hologram on eBay ( Loïc )
- Mon Sep 24, 2018 1:46 am
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8103
Re: Troubleshooting : emulsion peeling off
I use GP-2 always without bleaching.Can we really « not » bleach a hologram ??
I thought light would not penetrate the braggs structure and would not play back as 3d image ?
The exception is if you need to make a hologram of a transmissive for 532 and 488 nm
Good luck
- Sun Sep 23, 2018 7:04 am
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8103
Re: Troubleshooting : emulsion peeling off
I hope you know how to work without bleaching. for Denisyuk
Hyposulfite fixer
Hyposulfite fixer
- Sun Sep 23, 2018 5:39 am
- Forum: For Sale / Want to Buy / Trade
- Topic: Osram PL530 530nm laser diodes tested @75mw SLM
- Replies: 72
- Views: 144900
Re: 530nm laser diodes tested @75mw SLM
Perfectly !!!
is there such an opportunity with the red?
Valery.
is there such an opportunity with the red?
Valery.
- Sun Sep 23, 2018 5:34 am
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8103
Re: Troubleshooting : emulsion peeling off
Use GP-2, maybe this will help.
Who is the manufacturer of photographic plates?
Who is the manufacturer of photographic plates?