Search found 1794 matches

by Saul
Fri May 07, 2021 8:43 am
Forum: Equipment Discussions
Topic: Options on a Nikon Optiphot stand
Replies: 8
Views: 1437

Re: Options on a Nikon Optiphot stand

...I need some help/ideas please with adding an adhoc bottom lighting option with condenser to a Nikon Optiphot Epi Stand. Similar like this ? (I used it for the different purpose). You could use without heat sink, by attaching directly to the frame (which will work as a heat sink) COB used - https...
by Saul
Wed Apr 21, 2021 5:18 pm
Forum: Photography Through the Microscope
Topic: Onion
Replies: 23
Views: 9423

Re: Onion

Very interesting article from Quekett (thanks to jmp from Microbehunter), which confirms some my findings. It will answer John's (Dolmadis) question also. Cut my acrylic plate using blade saw and designed new fixture. Appears it was wasted time and efforts - 12mm thick plate was too thick - trying t...
by Saul
Tue Apr 20, 2021 6:03 pm
Forum: Equipment Exchange
Topic: Nikon TU Plan 50x ELWD! Rare!
Replies: 1
Views: 1167

Re: Nikon TU Plan 50x ELWD! Rare!

Price ? Asking for my friend .
by Saul
Thu Apr 01, 2021 1:33 pm
Forum: Administrator's Appreciation Gallery...Photography Through the Microscope
Topic: Onion with Sanderson prisms and pol filters (by Saul)
Replies: 3
Views: 5208

Re: Onion with Sanderson prisms and pol filters (by Saul)

dolmadis wrote:
Thu Apr 01, 2021 11:20 am
Congratulations Saul.
Thank you John !
by Saul
Mon Mar 29, 2021 7:14 pm
Forum: Photography Through the Microscope
Topic: Onion
Replies: 23
Views: 9423

Re: Onion

rjlittlefield wrote:
Mon Mar 29, 2021 7:03 pm
Thanks for the additional info!

So, one stressed plate below the condenser, and the other above the objective?

--Rik
Yes, and two polarisers
by Saul
Mon Mar 29, 2021 5:01 pm
Forum: Photography Through the Microscope
Topic: Onion
Replies: 23
Views: 9423

Re: Onion

Saul, the Sanderson prism stuff is totally new to me. I've had a quick read through the paper you referenced, but I have to confess that I'm still unclear on how to adapt the technique for use with macro/micro optics. Can you provide some more information about that? What did you have to do, to mak...
by Saul
Mon Mar 15, 2021 7:30 pm
Forum: Equipment Exchange
Topic: Optiphot-2
Replies: 0
Views: 1514

Optiphot-2

Looking for the Optiphot-2 illuminator's port assembly (or base). Location - USA

IMG_2248 res.jpg
by Saul
Thu Mar 11, 2021 3:28 pm
Forum: Equipment Discussions
Topic: Dimmable LED/flash microscope illuminator
Replies: 25
Views: 13437

Re: Dimmable LED/flash microscope illuminator

LED version only, but can be upgraded to the direct flash plus LED version also. Picture shows simple heatsink, but unit can be used with much more powerful LEDs using bigger heatsinks.


Comp-copy-1024.jpg
by Saul
Mon Mar 01, 2021 9:50 pm
Forum: Equipment Discussions
Topic: Sunlike COB
Replies: 1
Views: 1314

Sunlike COB

Anybody tried high CRI Sunlike COB:
https://www.digikey.com/en/products/det ... 01/9997417 ?
by Saul
Mon Mar 01, 2021 9:11 pm
Forum: Equipment Discussions
Topic: Dimmable LED/flash microscope illuminator
Replies: 25
Views: 13437

Re: Dimmable LED/flash microscope illuminator

Finalized version with heatsink which can handle approx. 22w (continuous duty). This design allows to use more powerful LEDs also (there is no heat stress on the 3D printed body) with bigger heatsink (or adding additional surfaces to the existing one (big plus of the T-Slot extrusion)). That all all...
by Saul
Mon Mar 01, 2021 5:46 pm
Forum: Photography Through the Microscope
Topic: Inside a rosehip
Replies: 10
Views: 3988

Re: Inside a rosehip

Beautiful picture !
Is USMC2x better than Mitutoyo 2x ?
by Saul
Sun Feb 28, 2021 9:34 pm
Forum: Equipment Exchange
Topic: Optiphot 2 and Labophot 2 service manuals
Replies: 1
Views: 1120

Optiphot 2 and Labophot 2 service manuals

Looking for the Optiphot 2 and Labophot 2 service manuals
by Saul
Fri Feb 05, 2021 3:39 pm
Forum: Equipment Discussions
Topic: Even DF illumination for 4x objective
Replies: 17
Views: 4236

Re: Even DF illumination for 4x objective

Aha! C-CEL expander lens...
.................
oh no that's not it
Found my old link - https://www.photomacrography.net/forum/ ... 98#p250598
But no part number ...
by Saul
Fri Feb 05, 2021 1:58 pm
Forum: Equipment Discussions
Topic: Even DF illumination for 4x objective
Replies: 17
Views: 4236

Re: Even DF illumination for 4x objective

Anyone got any advice on how to get great DF on a 4X objective that evenly illuminates the whole field? I have a Nikon Optiphot, but I have heard that some Olympus condensers are easy to adapt to the Nikon dovetail for the substage condenser, and that the olympus condensers have a filter tray for a...