Search found 132 matches

by Saul
Fri Jun 26, 2020 6:31 pm
Forum: For forum members who want to buy and sell equipment
Topic: Half-mirror
Replies: 8
Views: 1552

Re: Half-mirror

DonSchaeffer wrote:
Fri Jun 26, 2020 5:20 pm
What are these for--using a camera?
No , in the microscope as the BF/DF cube for the vertical EPI illuminator, please see this one, or UV version
by Saul
Fri Jun 26, 2020 3:56 pm
Forum: For forum members who want to buy and sell equipment
Topic: Half-mirror
Replies: 8
Views: 1552

Re: Half-mirror

microb wrote:
Fri Jun 26, 2020 3:49 pm
What are the dimensions of beam splitter mirror?
Ideal (in my case) - 18mm x 27mm.
Or little bit less
by Saul
Fri Jun 26, 2020 4:38 am
Forum: For forum members who want to buy and sell equipment
Topic: Half-mirror
Replies: 8
Views: 1552

Half-mirror

Looking for the half-mirror (not dichroic) for the Nikon BF/DF DIY cube.

Proof of the concept was made with the SurplusShed dichroic mirror (at the left),working model is at the right, used half-mirror leftover piece.

_DSC3356-web533x800U100.jpg
_DSC3356-web533x800U100.jpg (59.65 KiB) Viewed 1552 times
by Saul
Fri Jun 19, 2020 5:47 pm
Forum: Home-made microscope adaptations
Topic: Dimmable LED/flash microscope illuminator
Replies: 11
Views: 6787

Re: Dimmable LED/flash microscope illuminator

Hi Saul, again a great design! Thank you for sharing your methods so openly! Bob Bob, thank you very much for your words ! More photos http://www.photomacrography.net/forum/userpix/1489__DSC3201web1024x697U100_1.jpg http://www.photomacrography.net/forum/userpix/1489__DSC3194web1024x748U100_1.jpg ht...
by Saul
Fri Jun 19, 2020 2:11 am
Forum: Home-made microscope adaptations
Topic: Dimmable LED/flash microscope illuminator
Replies: 11
Views: 6787

Re: Dimmable LED/flash microscope illuminator

One more model (in parallel to the existing one) - more powerful, swap-able heatsink (let's say you want UV version also), can be used for non flash version, etc. Even more, the same heatsink can be used for both LEDs - reversed to the another side. http://www.photomacrography.net/forum/userpix/1489...
by Saul
Mon Jun 15, 2020 1:20 am
Forum: Microscopes and optics
Topic: Wave plates on Ebay
Replies: 6
Views: 1024

Re: Wave plates on Ebay

PeteM wrote:
Sun Jun 14, 2020 11:10 pm
Mine was 32mm sandwiched between glass. Maybe same material. Wouldn't surprise me if your link is the same seller, under a different name.
How it is performing ?
by Saul
Fri Jun 12, 2020 5:31 pm
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Re: Setting-up TL on the microscope

... but I had always presumed that the tube-lens would be in the upper part of the microscope body ... Hi Michael, correct. I have no plans to purchase the real infinity microscope, but I want to use my infinity objectives from the vertical setup . I tried to use TL on the Microphot top , but it di...
by Saul
Thu Jun 11, 2020 11:50 pm
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Re: Setting-up TL on the microscope

Scarodactyl wrote:
Thu Jun 11, 2020 11:34 pm
...or is it more an case of sticking with one for a particular set of photos?
Correct. And I have to refocus, what is not a big deal
by Saul
Thu Jun 11, 2020 10:53 pm
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Re: Setting-up TL on the microscope

Microscope turret solution, using printed slider adapter for the Microphot DIC intermediate tube: http://www.photomacrography.net/forum/userpix/1489_Interm_Micr_slider_1.jpg 100mm - Thor Labs AC254-100-A1 200mm - Reichert tube lens 130mm -130mm FL Achromatic Doublet Lens, 32mm diameter http://www.ph...
by Saul
Thu Jun 11, 2020 3:15 am
Forum: Pictures and Videos
Topic: Gymnosporangium rust
Replies: 3
Views: 365

Re: Gymnosporangium rust

Thank you all for your kind comments !
by Saul
Tue Jun 09, 2020 3:26 am
Forum: Pictures and Videos
Topic: Gymnosporangium rust
Replies: 3
Views: 365

Gymnosporangium rust

Sony A6300, Mitutoyo5x/125mm tube lens, 305 photos, Zerene DMap, Nikon Microphot http://www.photomacrography.net/forum/userpix/1489_finweb576x1024U100_1.jpg Bigger: https://live.staticflickr.com/65535/49986083771_ec09461e60_o.jpg Stereo: http://www.photomacrography.net/forum/userpix/1489_DMap_stereo...
by Saul
Wed May 20, 2020 11:30 pm
Forum: Pictures and Videos
Topic: Chironomidae larvae
Replies: 4
Views: 981

Re: Chironomidae larvae

Couple more stereos:
by Saul
Fri May 15, 2020 10:44 pm
Forum: Pictures and Videos
Topic: Radiolarian
Replies: 15
Views: 1127

Re: Radiolarian

MichaelG. wrote:
Fri May 15, 2020 10:36 pm
Thank you, kind Sir ... That does it very nicely

MichaelG.
Thanks Michael !
What is strange, I know one person who can see stereo of this reversed stereogram, without stereo glasses or cross-eyeing !
How it is possible ? Brain perception ?
by Saul
Fri May 15, 2020 10:20 pm
Forum: Pictures and Videos
Topic: Radiolarian
Replies: 15
Views: 1127

Re: Radiolarian

MichaelG. wrote:
Fri May 15, 2020 8:53 pm
Saul wrote:
Fri May 15, 2020 6:15 pm
Stereo version, done with Zerene, DMap .
Looks very promising, but I must find a quick way of switching these image pairs L-R
... viewed parallel, it looks like a cavity [and I can’t do cross-eyed viewing]

MichaelG.
by Saul
Fri May 15, 2020 6:15 pm
Forum: Pictures and Videos
Topic: Radiolarian
Replies: 15
Views: 1127

Re: Radiolarian

Stereo version, done with Zerene, DMap .
Now with the uniform background .

Image

Bigger:
https://live.staticflickr.com/65535/498 ... 5610_o.jpg
by Saul
Thu May 14, 2020 10:13 pm
Forum: Pictures and Videos
Topic: Radiolarian
Replies: 15
Views: 1127

Re: Radiolarian

It's really beautiful. Amazing shot. Hoffman type condenser insert/filter set Would you explain it a bit more? Thanks ! Not sure, are you familiar with this conversion insert . " a la Hoffman" extras were used with this set. Instead mirrored surfaces I used pol filters, what gave me ability to adju...
by Saul
Thu May 14, 2020 7:46 pm
Forum: Pictures and Videos
Topic: Radiolarian
Replies: 15
Views: 1127

Radiolarian

Sony a6300 , 154 photos, Nikon 50x 0.55 ∞/Reichert TL, Nikon Microphot , Hoffman type condenser insert/filter set, DIATOM LAB di Stefano Barone slide, PS/Picolay/StereoPhotoMaker http://www.photomacrography.net/forum/userpix/1489_Untitled1web568x1024U100_2.jpg Bigger: https://live.staticflickr.com/6...
by Saul
Thu May 07, 2020 2:30 am
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Re: Setting-up TL on the microscope

AC254-200-A - Ø1.0" , efl=200mm (https://www.thorlabs.com/thorproduct.cfm?partnumber=AC254-200-A-ML) The post said you bought the B coating. But it looks like you more recently bought Thors Labs' actual Nikon tube lens: https://www.thorlabs.com/thorproduct.cfm?partnumber=ITL200 I was hoping the AC2...
by Saul
Thu May 07, 2020 1:20 am
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Re: Setting-up TL on the microscope

When you say 200mm and 125mm tube lenses, are these achromatic doublets? Or something fancier? 200mm is Reichert Microstar IV head TL (no idea what is inside), 125mm - achromatic doublet. I have a Thorlabs achromatic doublet? Did you ever try that as a tube lens (based on a 2011 posting you had lin...
by Saul
Wed May 06, 2020 11:06 pm
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Re: Setting-up TL on the microscope

... So I'm really interested in understanding the goal here. Do you want to take a Microphot and add the right tube lens to get good images from infinity focus objectives? Hi Ted, it is correct ...Which series would you try? There are the older objectives that require corrections with relay lenses....
by Saul
Tue May 05, 2020 6:55 am
Forum: Home-made microscope adaptations
Topic: Setting-up TL on the microscope
Replies: 14
Views: 1877

Setting-up TL on the microscope

After converting to infinity my Optiphot , it is time for the Microphot. For 200mm I used Reichert TL, works OK, now looking for the shorter range TL . Question - how correctly to setup correct TL FL distance on the microscope, full of internal optics ? I cannot simply take a Microphot to the window...
by Saul
Tue May 05, 2020 4:47 am
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Nikon Microphot filter block
Replies: 0
Views: 750

Wanted: Nikon Microphot filter block

Looking for the Nikon Microphot filter block

Image
by Saul
Sun May 03, 2020 6:03 am
Forum: Pictures and Videos
Topic: Copper Sulphate
Replies: 0
Views: 863

Copper Sulphate

Testing a new illumination technique with my favorite AO 1.25 Abbe condenser, converted for Nikon. It is something similar to the mix of the Hoffman/Goerz condenser, but with some adds (will post later). Will make the same adaptation for the my universal condenser conversion kit also - works pretty ...
by Saul
Fri Apr 24, 2020 3:59 am
Forum: Pictures and Videos
Topic: Algae
Replies: 1
Views: 439

Algae

My first try with UV

Sony a6300, 63 photos, Goerz type condenser insert set, UV/Oblique/pol, Nikon Microphot, 20x BD Plan

Image
by Saul
Wed Apr 22, 2020 4:46 pm
Forum: Microscopes and optics
Topic: Olympus BH-2 question
Replies: 8
Views: 1036

Re: Olympus BH-2 question

...Another forum member also 3-D prints a device that fits these condensers, and is raised further up into the condenser body, so bringing stops nearer the iris. I am sure he will join the discussion at some point.... David asked me this question through another channel ... Initially I answered, no...
by Saul
Sat Apr 18, 2020 2:08 am
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 1341

Re: Highest power LED suitable for microscope?

Saul wrote:
Fri Apr 17, 2020 5:12 pm
...Adapting original, or building from the scratch ?
PeteM wrote:Given a mounted LED with the proper specs, I can take it from there either adapting an old housing or building one from scratch...
Heat sink of the old housing is too small for the REAL 10w.
Did you try to measure voltage & current ?
by Saul
Fri Apr 17, 2020 9:30 pm
Forum: Microscopes and optics
Topic: High CRI LEDs - Olympus True Color, Nichia Optisolis and Yuji VTC D50
Replies: 20
Views: 1601

Re: High CRI LEDs - Olympus True Color, Nichia Optisolis and Yuji VTC D50

Lutra87 wrote:
Fri Apr 17, 2020 7:15 pm
Hey guys, this retailer sells small quantities of the Nichia Optisolis LEDs...The goal is replacement of light source for old Zeiss Standard...
Data page states:
3v x 0.065a = 0.19w
4 x 0.19w= 0.76w only total per one quadruple pcs
Did I misunderstand something ?
by Saul
Fri Apr 17, 2020 8:41 pm
Forum: Microscopes and optics
Topic: Retrodiode LED conversion
Replies: 15
Views: 1285

Re: Retrodiode LED conversion

I never experienced banding, because I use long exposures, 3s and longer (shortest - 2s) on my LED/flash unit . If I need shorter - using flash. What type of microphotography requires such 1/50 - 1/500 shutter speed ? ... I do not have a flash. Sometimes, for brightfield photography of clear and co...