Holographyforum.org / holowiki.org

I see, thanks! I've just had a look at my blue LED darkroom light with a little spectrometer, and it peaks at ~465nm. The spectral absorption on https://geola.com/product/photopolymer/ shows 465nm blue is just a teeny bit higher than using a 660nm yellow safe light. Save the pennies, and the hologra...

I'm just in the process of talking to Tatjana to get an 18 sheet pack of 10 x 15cm Bayfol HX200... currently at ~£100. Oh no........ I've got a rainbow of colours for safe lights, from super deep cherry red luxor, through to near UV-A, but not yellow. =( Any torches on Amazon UK have the right frequ...

"..........no risk of diffraction interference from blocking card edges."

Ooo, what's that? I thought blocking the edges stops interference.

Ah, the stock I'm using is 4 year old Litiholo C-RT20 emulsion between acetate sheets mounted on glass. From what I can tell from my extensive sleuthing online it's (probably really incorrectly) the Bayfol® HX Film Holographic Photopolymer cleanly applied to glass sheets and cut into sections that a...

Thank you! It's such an amazingly strong effect - I had no idea it would destroy the picture all the way to the bottom. I recreated the laser source using advanced simulation technology, and was able to observe the lines appear just as they did on the hologram, AND the same distance apart which was ...

Hiyah! Thanks for replying. My "setup" looks like this: http://untamed.zone/miscImages/hol4.jpg Here's a clearer view of the stripey lines - this exposure had the lines closer together, I have no idea why! Notice how they follow the models within the scene? They're like a window-blinds abo...

Does anyone know what causes these "ISO Line" stripes on a hologram? My laser was warm, and my setup was in the usual way that produces bright holograms. But over the weekend I've been getting stripes in all my exposures, like depth ISO lines into the picture! Attemp 1: http://untamed.zone...