Hologram 193.3

Present your work.
tommyNaN
Posts: 14
Joined: Thu Apr 30, 2020 9:46 pm
Contact:

Hologram 193.3

Post by tommyNaN »

Image

Second "production" DCG hologram. The first one didn't come out, the subject was too squishy, and moved during the exposure. Note the shadow on the lower right side, the subject moved slightly.

20% 250 bloom gelatin
mold coated with scotch tape shims (2 mils)
dried about 5 days (mostly because I had to go to work...)
sensitized for 1 minute in a 3% solution of K dichromate, rinsed in 1/2 % K dichromate to avoid crystallization.
dried overnight, it was about 12 hours old when exposed.
exposed for 200 seconds, to 100 uW/cm^2 457nm light
So about 14 millijoules/cm^2 (angled at 45 degrees)

washed for 30 seconds in distilled water (picked up lots of dichromate)
fixed for 30 seconds in 1 % K metabisulfate, no hardener
swelled in distilled water at 26C for 5 minutes
2 minutes in 70% IPA (26C)
2 minutes in 91% IPA (28C)
2 minutes in 99% IPA (28C)
dried with a heat gun, till too hot to hold
jrburns47
Posts: 165
Joined: Mon Sep 14, 2015 2:48 pm
Location: Oyster Bay, NY

Re: Hologram 193.3

Post by jrburns47 »

Very nice.
Nnnn
Posts: 39
Joined: Tue Nov 06, 2018 3:23 am

Re: Hologram 193.3

Post by Nnnn »

Wonderful! Your work makes me want to try and get into DCG myself.
BobH
Posts: 440
Joined: Tue Jan 06, 2015 10:26 pm
Location: Mesa, AZ

Re: Hologram 193.3

Post by BobH »

Very nice indeed!
tommyNaN
Posts: 14
Joined: Thu Apr 30, 2020 9:46 pm
Contact:

Re: Hologram 193.3

Post by tommyNaN »

Thanks! Hopfully my notes are useful to someone... My methodology is based pretty much entirely on reading old holography forum discussions.

Nnnn, go for it! You have nothing to lose, and everything to gain. The worst that will happen is a getting jello everywhere.
holomaker
Posts: 772
Joined: Wed Jan 07, 2015 8:01 am

Re: Hologram 193.3

Post by holomaker »

Excellent results !
Congratulations you are now a DCG holographer!
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