Search found 132 matches

by Saul
Fri Apr 17, 2020 2:40 pm
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 1341

Re: Highest power LED suitable for microscope?

Are you looking for a direct replacement or something you can play around and build yourself? Quality LED chips produce about 100 lumens per watt now. You can get chips with a CRI of 97. For quality LED chips, you will need to look outside normal suppliers. I'm looking to build myself. Appreciate a...
by Saul
Fri Apr 17, 2020 2:36 pm
Forum: Microscopes and optics
Topic: Retrodiode LED conversion
Replies: 15
Views: 1285

Re: Retrodiode LED conversion

... the banding produced in photographs below 100% brightness ... At what shutter speed ? With the PWM 21kHz dimmer, banding can occur at high shutter speeds, say 300-400, at 50-100% brightness. My experience. This is almost never a problem, since such speeds are very rare in my work.... I never ex...
by Saul
Fri Apr 17, 2020 1:52 pm
Forum: Microscopes and optics
Topic: Retrodiode LED conversion
Replies: 15
Views: 1285

Re: Retrodiode LED conversion

Hobbyst46 wrote:
Fri Apr 17, 2020 9:17 am
[...Found it !! ‪They are named TDKK‬‏. I did not buy from them as yet, but they are pleasantly communicative, and my feeling is that they are high-level professionals.
Looks like a low power LED (looking at the heat sink). Any idea what LED is used ?
by Saul
Fri Apr 17, 2020 5:24 am
Forum: Microscopes and optics
Topic: Highest power LED suitable for microscope?
Replies: 15
Views: 1341

Re: Highest power LED suitable for microscope?

Hi Pete, the Cree XHP 50 and 70 of 18 and 32 W could be an option. White LEDs generally have a dent in the spectrum around 500nm. This is less severe on warm white models and they can be used with a light blue filter. A 4000K-5000K LED gives a nice neutral tone in my eyes. Bob Original heat sink is...
by Saul
Fri Apr 17, 2020 3:24 am
Forum: Microscopes and optics
Topic: Retrodiode LED conversion
Replies: 15
Views: 1285

Re: Retrodiode LED conversion

stitchy.mitch wrote:
Thu Apr 16, 2020 1:08 am
... the banding produced in photographs below 100% brightness ...
At what shutter speed ?
by Saul
Thu Apr 16, 2020 3:36 pm
Forum: Pictures and Videos
Topic: Krypton
Replies: 8
Views: 630

Re: Krypton

Thank you all for your kind comments ! ...Would you mind telling us a bit more about the crystals? What are they made of etc. It is copper sulfate mixed with Miracle-Gro fertilizer , very edge of the slide (why this nice blue color :)) ...Is Microphot the DSLR-to-microscope adapter? ...If it's not, ...
by Saul
Thu Apr 09, 2020 6:31 pm
Forum: Pictures and Videos
Topic: Krypton
Replies: 8
Views: 630

Re: Krypton

MichaelG. wrote:
Thu Apr 09, 2020 5:42 pm
That’s beautiful, Saul

MichaelG.
Thanks Michael !
by Saul
Thu Apr 09, 2020 6:30 pm
Forum: Pictures and Videos
Topic: Krypton
Replies: 8
Views: 630

Re: Krypton

Hobbyst46 wrote:
Thu Apr 09, 2020 5:50 pm
Great photo ! I suspect that it is Kryptonite and not Krypton. Krypton is a novel gas and cannot be easily crystallized on a microscope stage...
Thanks !
....kryptonite on the Krypton planet !
by Saul
Thu Apr 09, 2020 5:38 pm
Forum: Pictures and Videos
Topic: Krypton
Replies: 8
Views: 630

Krypton

...even you can see flying Superman !

174 photos, 20x, Nikon D7200, Microphot, Pol/Oblique, continuous light with LED/flash adapter

Bigger

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by Saul
Wed Apr 01, 2020 5:19 am
Forum: Pictures and Videos
Topic: Minecraft Soccer Graffiti
Replies: 1
Views: 235

Minecraft Soccer Graffiti

Sony A6300, 87 photo stack, 93.75x, salt , oblique/pol

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by Saul
Tue Mar 31, 2020 6:28 pm
Forum: Pictures and Videos
Topic: Waves
Replies: 0
Views: 609

Waves

Got a new toy- Nikon Plan Apo 150x 0.95 and I'm very happy with the initial results. 125mm tube lens (93.75x), Microphot with ∞ adapter, 43 photos, Sony A6300, Obl/Pol with variable sliding oblique filter, continuous light with LED/flash illuminator , 2.5s shutter, 100ISO, PS/Picolay http://www.phot...
by Saul
Sun Mar 29, 2020 7:37 pm
Forum: Pictures and Videos
Topic: Brouche
Replies: 4
Views: 745

Re: Brouche

Forgot to add reversed image

Image
by Saul
Sat Mar 28, 2020 10:14 pm
Forum: Pictures and Videos
Topic: Brouche
Replies: 4
Views: 745

Brouche

Nikon D7200, Nikon 50x 0.55 infinity ELWD with the Reichert tube lens ( Microphot with infinity adapter), 265 photos, PS/Picolay, oblique polarisation with variable sliding oblique filter , MgSO4 with fertilizer, continuous light with LED/flash illuminator Microphot version http://www.photomacrograp...
by Saul
Tue Mar 24, 2020 7:52 pm
Forum: Pictures and Videos
Topic: Water mite stereo
Replies: 13
Views: 1927

Re: Water mite stereo

2nd is for stereo glasses.
But...yesterday one person told me, that 2nd set was ok for him, 1st was hollow :? ...
Maybe it depends , how brain merges it ?
by Saul
Tue Mar 24, 2020 4:30 pm
Forum: Pictures and Videos
Topic: Water mite stereo
Replies: 13
Views: 1927

Re: Water mite stereo

Thank you all for your kind comments !
Looks like it is #8
by Saul
Mon Mar 23, 2020 8:44 pm
Forum: Pictures and Videos
Topic: Chironomidae larvae
Replies: 4
Views: 981

Chironomidae larvae

Nikon D7200, 16 photos, Nikon Optiphot, Nikon BD 20x infinity, Optiphot LED/flash illuminator www.flickr.com/photos/bauras/32786193207/in/photostream/ , Oblique/Polarisation, stacked in PS http://www.photomacrography.net/forum/userpix/1489_1024PMN_2.jpg Bigger: https://live.staticflickr.com/65535/48...
by Saul
Sun Mar 22, 2020 7:45 pm
Forum: Pictures and Videos
Topic: Water mite stereo
Replies: 13
Views: 1927

Re: Water mite stereo

MichaelG. wrote:
Sun Mar 22, 2020 7:50 am
Great images !!

Unfortunately for me: My free-viewing technique results in a hollow effect
... I will try swapping the Left and Right images

MichaelG.
Thanks Michael !
Swapped:

Image
by Saul
Sun Mar 22, 2020 5:23 am
Forum: Pictures and Videos
Topic: Water mite stereo
Replies: 13
Views: 1927

Water mite stereo

183 photos, Sony A6300, PS/Picolay, Optiphot, Nikon BD Plan 20x, Nikon condenser with DF insert,cross pol, variable oblique filter, LED/flash adapter

Image
by Saul
Fri Mar 06, 2020 4:19 am
Forum: Microscopes and optics
Topic: Trinocular head , Phase contrast and darkfield for Nikon Alphaphot YS2-H ?
Replies: 8
Views: 4634

Re: Trinocular head , Phase contrast and darkfield for Nikon Alphaphot YS2-H ?

"3. Darkfield/oblique, at least for the 4X and 10X objective;" - depending on your condenser - https://www.ebay.com/itm/264551006510
by Saul
Sat Feb 29, 2020 8:33 pm
Forum: Pictures and Videos
Topic: Windows
Replies: 3
Views: 1138

Windows

Champagne & fertilizer, polarized & oblique illumination, Nikon D7200, BD Plan 20x, Microphot, AO condenser with variable oblique filter, PS 53 photo stack, LED/flash adapter

Image
by Saul
Fri Feb 28, 2020 11:58 pm
Forum: Pictures and Videos
Topic: 7° only ?
Replies: 2
Views: 849

7° only ?

Moonshine & fertilizer, polarized & oblique illumination, Nikon D7200, BD Plan 20x, Microphot, AO condenser with variable oblique filter, PS 116 photo stack, LED/flash adapter http://www.photomacrography.net/forum/userpix/1489__DSC7542PMN950_1.jpg Bigger: https://live.staticflickr.com/65535/49598077...
by Saul
Tue Feb 18, 2020 12:51 am
Forum: Home-made microscope adaptations
Topic: Dimmable LED/flash microscope illuminator
Replies: 11
Views: 6787

Re: Dimmable LED/flash microscope illuminator

daruosha wrote:
Mon Feb 17, 2020 11:13 pm
You made it all by yourself or it's commercial product? I've never seen such a refined solution like this before. I mount my flash on a tripod shooting towards the mirror beneath the condenser. No contest for me :)
Thanks ! It is made by myself. It took some time .... :roll:
by Saul
Mon Feb 17, 2020 8:19 pm
Forum: Home-made microscope adaptations
Topic: Dimmable LED/flash microscope illuminator
Replies: 11
Views: 6787

Re: Dimmable LED/flash microscope illuminator

Olympus BHS version http://www.photomacrography.net/forum/userpix/1489__DSC3041_3.jpg http://www.photomacrography.net/forum/userpix/1489__DSC3004_1.jpg http://www.photomacrography.net/forum/userpix/1489__DSC3005_1.jpg http://www.photomacrography.net/forum/userpix/1489__DSC29962_1.jpg Unit has fly-ey...
by Saul
Mon Feb 10, 2020 9:43 pm
Forum: Home-made microscope adaptations
Topic: Nikon Microphot stepper adapter
Replies: 4
Views: 3403

Re: Nikon Microphot stepper adapter

...What workflow are you using with such a set up? As in, do you zero at the lowest level and then motor away while video-ing, then use toupview to z-focus the resulting movie file? I'm curious what people out there use for software/controllers and how they prevent crashing the objective... Hi Ted ...
by Saul
Fri Feb 07, 2020 10:42 pm
Forum: Home-made microscope adaptations
Topic: Nikon Microphot stepper adapter
Replies: 4
Views: 3403

Re: Nikon Microphot stepper adapter

PeteM wrote:
Fri Feb 07, 2020 10:27 pm
Nicely done, Saul. Looks like you're revolutionizing things, one STL file at a time.
Thanks, Pete !
by Saul
Fri Feb 07, 2020 7:34 pm
Forum: Home-made microscope adaptations
Topic: Nikon Microphot stepper adapter
Replies: 4
Views: 3403

Nikon Microphot stepper adapter

Nikon Microphot stepper adapter

STL file:
https://www.thingiverse.com/thing:4149920

Image

Image
by Saul
Thu Feb 06, 2020 6:10 pm
Forum: Microscopes and optics
Topic: 20x nikon plan apo infinite objectives on eBay for 100bux
Replies: 10
Views: 2144

Re: 20x nikon plan apo infinite objectives on eBay for 100bux

Saul, Nicely done. Curious what your source was for the 200mm tubelens. Nikon? Edmund? Or?? And is the head a modified finite Nikon?? Thanks Pete ! This TL is 125mm & source was SurplusShed. I have an option for 200mm (ITL200) https://www.photomacrography.net/forum/viewtopic.php?p=236632#236632 Or ...
by Saul
Thu Feb 06, 2020 5:22 pm
Forum: Microscopes and optics
Topic: 20x nikon plan apo infinite objectives on eBay for 100bux
Replies: 10
Views: 2144

Re: 20x nikon plan apo infinite objectives on eBay for 100bux

So I recently got one for a bargin price - now what is a good stand to use it with? I already have a Nikon Optiphot-2, but this is for 160mm objectives only...Is it worth going down the path of modding the optiphot? My approach (with 125mm TL. Other setups - https://www.photomacrography.net/forum/v...