https://swannrack.tv/videos/watch/ed97808f-72c1-4e98-9103-d18ccbdda947 This was my first great DCG hologram. I just took some metal Mounting Brackets and placed them directly on the DCG emulsion. This made for a very solid exposure setup. Such amazing brightness on this hologram. There is still some „fog“ in the emulsion, you can see that as I flip the hologram in my hands. But you can also see the purple color projected on the wall as the light passes through the hologram. I call this the „purple haze“. This is always an indicator for a very bright hologram. Here are my production notes on that hologram: I rebuilt the exposure setup and installed the collimating mirror. It’s not perfect yet, but the beam is already fairly uniform across a 16 × 16 cm window. After that I also cleaned the lens in the spatial filter – it was totally dirty at the focal point. The optimal distance between the spatial filter and the collimating mirror should be about 62 cm. The plates I sensitized today with the old sensitizing solution from three days ago turned out to be awful. Lots of crystallization, even though I diluted the solution again with 300 ml of water and added eight thick drops of soap. So for good results I need a fresh solution every time. After the dry box all the plates showed crystallization, which explains the poor result. In addition the beam from the collimating mirror wasn’t properly centered. Both plates were exposed at the same time; they lay side by side. I attribute the differences in the results solely to the varying degrees of crystallization. Hologram 1 and 2 • Exposure: 5 min • Light fix: 20 cm, 2 min (too short) • Chemical fix: 1 min • ISO standard • ISO 100 % – 58 °C (too cold), 4.5 min @ 400 W • Hair dryer: 10 min After the hair dryer one hologram was visible, the other almost none. After 10 min I pulled both out and checked; both were reddish. Then I put the better‑visible one back in the oven at 100 °C for another 10 min to see if there would be a color shift – nothing changed. Conclusion: The holograms need more hardening than just 5 min exposure, maybe 3 or 4 min… The collimated beam is simply much weaker now. Hashtags: #hologram #holography #dcg Swann’s Email: feed_enduring000@simplelogin.com Fri, 05 Jun 2026 09:35:45 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://swannrack.tv https://swannrack.tv/lazy-static/avatars/3926be55-e835-4497-a57a-4e8b3324888a.png https://swannrack.tv/videos/watch/ed97808f-72c1-4e98-9103-d18ccbdda947 All rights reserved, unless otherwise specified in the terms specified at https://swannrack.tv/about and potential licenses granted by each content's rightholder.