Search found 121 matches

by Holomark
Thu Oct 01, 2015 9:56 pm
Forum: Gallery
Topic: Wedding present
Replies: 2
Views: 6642

Re: Wedding present

Nice work Dinesh!
by Holomark
Wed Jul 01, 2015 4:59 pm
Forum: General Holography
Topic: Reference Beam with two Bi-Concave Lenses
Replies: 3
Views: 2563

Re: Reference Beam with two Bi-Concave Lenses

I use the same technique. It works fine with my 532 DPSS and HENE at the same time.
Mark
by Holomark
Wed Nov 19, 2014 5:43 pm
Forum: Off Topic
Topic: On Topic Off Topic
Replies: 2
Views: 2542

On Topic Off Topic

Well... been a bit busy with my day job and I was out of plates. Just ordered some more plates, so I hope to be shooting again soon!
Mark
by Holomark
Wed Sep 17, 2014 9:27 am
Forum: General Holography
Topic: Beam delivery with fibers
Replies: 31
Views: 14266

Beam delivery with fibers

Still curious - how much light loss compared to using lenses?
It looks like good results! Was your exposure time significantly longer than your old setup?
Mark
by Holomark
Sun Jul 20, 2014 2:33 pm
Forum: General Holography
Topic: Yellow Photons
Replies: 4
Views: 3061

Yellow Photons

What is the coherence length?
by Holomark
Sat Jul 19, 2014 12:45 pm
Forum: Gallery
Topic: hazy 2-color
Replies: 33
Views: 15481

hazy 2-color

Looks like some good progress. Interesting that the color bands on the rod seem to be shifted (out of alignment).
The more i see good progress with DCG, the more I want to start making my own!
by Holomark
Mon Jul 14, 2014 3:15 pm
Forum: General Holography
Topic: Beam delivery with fibers
Replies: 31
Views: 14266

Beam delivery with fibers

John, I am interested in the output when using fibers. I know you said there is a lot of loss, but can you quantify this. Input vs output and divergence of output beam. I currently have 18 different optical components on my table to make a split beam 2 color reflection - there is a lot of loss in my...
by Holomark
Mon Jul 14, 2014 9:51 am
Forum: Gallery
Topic: wolf - multi color
Replies: 4
Views: 4192

wolf - multi color

Thank you. I used Ultimate plates and chemistry. I had about 18 different optical components to make this split beam reflection using my 315M (green) and HENE (red). I ended up with one combined color reference beam and four seperate (2 red and 2 green) object beams. This seemed to work nicely, but ...
by Holomark
Fri Jun 27, 2014 5:36 pm
Forum: General Holography
Topic: Beam delivery with fibers
Replies: 31
Views: 14266

Beam delivery with fibers

Ed, That beam splitting, fiber launching unitlooks nice. It looks like the DBL-3 splits the beam twice to make three beams (1 reference and 2 object). I wonder what kind of lense is at the end and how large an object can be illuminated? Is there any adjustment or way to change the output (divergence...
by Holomark
Fri Jun 27, 2014 1:36 pm
Forum: Gallery
Topic: wolf - multi color
Replies: 4
Views: 4192

wolf - multi color

Just developed a nice multi color reflection -
Wolf - Flash 1
Wolf - Flash 1
wolffflash 2 (3).jpg (30.04 KiB) Viewed 4192 times
Wolf - Flash 2
Wolf - Flash 2
wolffflash 3 (3).jpg (31.87 KiB) Viewed 4192 times
Wolf - Sun 1
Wolf - Sun 1
wolfsun 4.jpg (42.82 KiB) Viewed 4192 times
Mark