Search found 17 matches

by maskedkoala
Sat Sep 26, 2020 8:26 pm
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

Yeah, I'd love to take a weekend to visit the guys in Miami, but Florida still has over 100 people dying a day from COVID19 and our Governor is essentially lifting all restrictions and opening the state up. So no field trips for the foreseeable future, I'm afraid. I think I'm going to finish out the...
by maskedkoala
Wed Sep 16, 2020 9:57 am
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

Thanks! Any suggestions for the next incremental step?
by maskedkoala
Fri Sep 11, 2020 7:06 pm
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

The card did the trick. The dry erase works well to block the edge for the replay.

And good call, jrburns47, I bought some chemicals off of Phogorapher's Formulary and made up some new developer.

Image
by maskedkoala
Mon Aug 24, 2020 8:56 am
Forum: Off Topic
Topic: PSA: SPIE Conference is this week, virtual, and free.
Replies: 1
Views: 4760

PSA: SPIE Conference is this week, virtual, and free.

Heads up to anyone who may not be aware. Due to COVID, to SPIE conference is virtual and free this year. It's this week.

https://spie.org/conferences-and-exhibi ... -photonics
by maskedkoala
Sun Aug 23, 2020 12:13 pm
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

Thanks. I've been trying tommyNaN's suggestion of using dry erase on the edge. That makes it a little better, but doesn't seem to be enough. I think I'll try electrical tape next time.
by maskedkoala
Tue Aug 18, 2020 7:17 pm
Forum: Beginning Holography
Topic: Removing Emulsion from PFG-01 Plates
Replies: 2
Views: 4844

Re: Removing Emulsion from PFG-01 Plates

Awesome. Thank you!
by maskedkoala
Tue Aug 18, 2020 10:06 am
Forum: Beginning Holography
Topic: Removing Emulsion from PFG-01 Plates
Replies: 2
Views: 4844

Removing Emulsion from PFG-01 Plates

Is there an easy way to remove emulsion from the plates? I'd like to resuse the glass from old or failed holograms and reuse them for other purposes.
by maskedkoala
Fri Aug 14, 2020 6:48 pm
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

Excellent idea. It turns out that 6 pack boxes for cans are very close to that--roughly 12 x 13 x 20 cm. I just happened to have one of those around... weird! https://imgur.com/I2XLkuq.jpg I used clear acrylic paint to cover the inside with left-over wrappers from the plates. https://imgur.com/Cv7tK...
by maskedkoala
Wed Aug 05, 2020 11:25 pm
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

https://i.imgur.com/ufcLllQ.png Exposure test. 1s and 2s didn't appear to hit the threshold. They also didn't get very dark in the developer. I did some very rough estimates (no power meter) and determined my power density was something like 10-20 uW/cm^2 which would put optimum exposure around 4-8...
by maskedkoala
Sat Jul 25, 2020 11:48 pm
Forum: Gallery
Topic: First Light with Integraf Kit
Replies: 26
Views: 17729

Re: First Light with Integraf Kit

Nice. You guys rock. Thanks for the excellent information. From the wiki on CWC2: Follow with a ... 'Chrome bleach for change of replay wavelength in the reflection mode. Does "Chrome bleach" mean bleach with potassium dichromate? If so, it sounds like that's what happened. However, lookin...