Holographyforum.org / holowiki.org

Is NaEDTA equivalent to Ferric EDTA for our holographic bleaching purpose ? or do I have to somehow "break" NaEDTA and mix it to cook my own Ferric EDTA ?

EDTA-based elements are quite difficult to obtain in France due to regulations, is there an honorable substitute you might know about ?

I need to bleach these "HoloFilm 250 PAR"

Many thanks for your impressive feedback, that's a lot of data to process for me now :-) You wrote " So I simply laid the piece of film on the waffle iron without any holders or frames"... ehhhhh how could you prevent unwanted movements ? I tought I'd have to find 2 suitable glass plates t...

Thank you very much for your help !

I will test this Kodak D19 Developer formula

Any clue for the Bleach ?
I'm pretty scared by the idea of using Sulfuric Acid xD as stated in Hans Bjelkhagen's chapter 3.3.4 !

Seems we have to aim for a Rehalogenating bleach type ?

Hi folks, I was fortunate to be sold by an understanding ebay seller this Holofilm ( we have no real idea of the type of holographic film, maybe it won't work at all or maybe it's only holographic foil which would just make some rainbows effect ), nevertheless, in the event of this being real hologr...

With integraf led and battery cell I made this using ultimate plate.

There is clearly an overexposition in the middle :

Hi Everyone ! I'm new to this forum and quite happy to finally have found a place to discuss my newest hobby ! I've spent countless hours on trying to make holograms and burnt something like 30 plates (Integraf & Ultimate) and I must say that maybe 2 holograms only were successful. I wonder if m...