Search found 761 matches

by viktor j nilsson
Fri Apr 15, 2022 3:31 am
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus BH2 DIC
Replies: 24
Views: 5397

Re: Wanted: Olympus BH2 DIC

woyjwjl wrote: I found this prism. Is it the one you use?
Yep, those are the ones I have.
by viktor j nilsson
Thu Apr 14, 2022 6:27 pm
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus BH2 DIC
Replies: 24
Views: 5397

Re: Wanted: Olympus BH2 DIC

Thank you for your detailed reply. I noticed that your DIY DIC prism is still missing 20x. Is there any problem? Sincere wowjl I am getting really good DIC at 20x now with one of my DIY prisms and my Olympus short-barrel planapo 20x 0.65. Dark and even background. No images to show, unfortunately. ...
by viktor j nilsson
Thu Apr 14, 2022 4:49 am
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus BH2 DIC
Replies: 24
Views: 5397

Re: Wanted: Olympus BH2 DIC

Yeah, there's definitely enough tolerance in DIC to be worth trying mismatched systems. It's also worth remembering that even the original BH-2 system was only designed for Splan Achromats, so people (like Charles Krebs) using it with Splan Apo's are actually using a mismatched system anyway, which ...
by viktor j nilsson
Wed Apr 13, 2022 8:09 am
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus BH2 DIC
Replies: 24
Views: 5397

Re: Wanted: Olympus BH2 DIC

No. It's for the Vanox AH. It won't fit the condenser holder on the BH2, and, since it doesn't have the LB sticker, it will most likely have three prisms designed for short-barrel objectives and AH intermediate tube.
by viktor j nilsson
Mon Apr 11, 2022 7:39 pm
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus BH2 DIC
Replies: 24
Views: 5397

Re: Wanted: Olympus BH2 DIC

Here's a LB version for the Vanox AH: https://www.ebay.com/itm/224661096841 Actually, I just realized that it says that it only has 10,40 and 100x prisms, just like the original short-barrel version. Now that I think of it, I think that you've shared that info with me before, PeteM. Then I guess tha...
by viktor j nilsson
Mon Apr 11, 2022 7:34 pm
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus BH2 DIC
Replies: 24
Views: 5397

Re: Wanted: Olympus BH2 DIC

https://www.microbehunter.com/microscopy-forum/viewtopic.php?p=73842#p73842 Here are photos showing the difference between the AH (short-barrel) and BH-2 (long-barrel) intermediate tubes. The intermediate tube in the photo you linked to is of the BH-2 long-barrel type, but, as PeteM points out, the ...
by viktor j nilsson
Sat Apr 09, 2022 6:03 am
Forum: Microscopes and optics
Topic: Nikon Microphot FXA
Replies: 16
Views: 4891

Re: Nikon Microphot FXA

Great Post, Pete. I was really tempted by one of these a couple of years ago. Came with a full set of PlanApo's, for $999. Of course, shipping it across the Atlantic made it too much of a hassle. Being the flagship model, I'm thinking that a greater proportion of these were sold with high-end optics...
by viktor j nilsson
Tue Apr 05, 2022 10:59 am
Forum: Microscopes and optics
Topic: 160TL 60x-100x water iris objective
Replies: 15
Views: 3248

Re: 160TL 60x-100x water iris objective

That's quite an attractive set of features. The Zeiss Plan Neofluar 63x 1.2 W Korr is pretty much the only one thing that comes to mind, but it doesn't have an iris: https://gimitec.com/epn/wp-content/uploads/2021/01/zeiss-microscope-plan-neofluar-63x-1-2-w-korr-160-0-12-0-22-water-objective.jpg?v=1...
by viktor j nilsson
Thu Mar 31, 2022 2:45 pm
Forum: Microscopes and optics
Topic: Nikon objective PlanApo 40X 1.0
Replies: 6
Views: 1770

Re: Nikon objective PlanApo 40X 1.0

That's a nice one from the original CF series. Nikon never updated it (CFN) before going infinity.

Not for sale, is it?
by viktor j nilsson
Wed Mar 30, 2022 6:23 pm
Forum: For forum members who want to buy and sell equipment
Topic: -
Replies: 14
Views: 6937

Re: For sale - legendary Carl Zeiss Jena Apochromat 60/1,40 HI

Totally crazy that no-one has bought this from you!
by viktor j nilsson
Sun Mar 20, 2022 7:37 am
Forum: Pictures and Videos
Topic: Pond life UV autofluorescence with Optolong LP-DAPI cube
Replies: 9
Views: 2349

Re: Pond life UV autofluorescence with Optolong LP-DAPI cube

Impressive start ! I like the DIY cube ; I assume that some artefacts in the photos originate from the illumination train upstream of the cube. Because the choice of filters is OK (for a fluorophore excited by UV). Especially the plant images appear to be non-uniform illumination as you hinted. Ind...
by viktor j nilsson
Sat Mar 19, 2022 6:51 pm
Forum: Pictures and Videos
Topic: Pond life UV autofluorescence with Optolong LP-DAPI cube
Replies: 9
Views: 2349

Re: Pond life UV autofluorescence with Optolong LP-DAPI cube

nematos wrote:
Sat Mar 19, 2022 4:29 pm
Really incredibly beatifull picture!
Thank you! I was thrilled to see how well they turned out.
by viktor j nilsson
Sat Mar 19, 2022 3:27 pm
Forum: Pictures and Videos
Topic: Pond life UV autofluorescence with Optolong LP-DAPI cube
Replies: 9
Views: 2349

Re: Pond life UV autofluorescence with Optolong LP-DAPI cube

The microscope setup: https://i.imgur.com/K3UtOas.jpg And the 3D printed filter cube: https://i.imgur.com/26Zj8at.jpg The cube is just a prototype, temporarliy assembled with duct tape. I will need to fix a few small design mistakes and print a new one. When I am happy with the design, I would be ha...
by viktor j nilsson
Sat Mar 19, 2022 3:25 pm
Forum: Pictures and Videos
Topic: Pond life UV autofluorescence with Optolong LP-DAPI cube
Replies: 9
Views: 2349

Pond life UV autofluorescence with Optolong LP-DAPI cube

A couple of months ago, I was sent a LP-DAPI filter cube from Optolong. In return I promised to share the results online. I thought it was a good excuse to force me to finish my DIY fluoresence build, and actually try to take some pretty pictures. It turned out to be a little tricky to fit the filte...
by viktor j nilsson
Fri Mar 11, 2022 5:21 pm
Forum: Home-made microscope adaptations
Topic: Frankenstar IV
Replies: 53
Views: 17637

Re: Frankenstar IV

It depends a little on whether you want to use as much of the LED output as possible for excitation, or if you want to filter out the visible light and focus on wavelengths shorter than 400nm. If you do autofluorescence, shorter wavelengths are definitely better, and a 365nm LED would be much better...
by viktor j nilsson
Fri Mar 04, 2022 3:32 pm
Forum: Beginner's corner
Topic: Want to learn more about eyepiece
Replies: 11
Views: 4187

Re: Want to learn more about eyepiece

They also are required to pick the image up 18mm down the tube, which is a focal distance unique to leitz. I don't understand :( https://www.mikroskopie-forum.de/pictures002/87737_5297393.jpg This image, which is found in one of the links in the thread I linked to above illustrates the issue. Leitz...
by viktor j nilsson
Fri Mar 04, 2022 3:14 pm
Forum: Beginner's corner
Topic: Want to learn more about eyepiece
Replies: 11
Views: 4187

Re: Want to learn more about eyepiece

I've always been a bit confused by the many different varieties of Leitz eyepieces. But based on this discussion: https://www.microbehunter.com/microscopy-forum/viewtopic.php?t=13733 I believe that it is a general rule that eyepieces made for 170mm Leitz microsopes does not have a field number writt...
by viktor j nilsson
Sun Feb 27, 2022 6:01 am
Forum: Microscopes and optics
Topic: 60x-70x multiple objective comparison. Identities revealed.
Replies: 23
Views: 9054

Re: 60x-70x multiple objective comparison. Identities revealed.

Good list, but you're missing the 12x and 63x objectives! :lol:
by viktor j nilsson
Sun Feb 20, 2022 10:44 pm
Forum: Beginner's corner
Topic: Coloured Backgrounds
Replies: 5
Views: 1770

Re: Coloured Backgrounds

Robert is pretty generous with sharing details about his photos. On the page below, you'll see that he used DIC illumination for that photo: www.canadiannaturephotographer.com/ciliates.html Buying a DIC capable microscope is not cheap, usually a couple thousand USD. A fairly similar color scheme can...
by viktor j nilsson
Thu Feb 17, 2022 5:17 am
Forum: Home-made microscope adaptations
Topic: Voice Control? Foot Control?
Replies: 13
Views: 4338

Re: Voice Control? Foot Control?

I've built a foot switch to trigger my camera. This is especially nice when shooting pond critters as it allows you to focus with one hand and move the stage with the other.

Here's instructions:
www.instructables.com/Canon-EOS-Foot-Pe ... ter-Remote
by viktor j nilsson
Mon Feb 07, 2022 12:10 pm
Forum: Beginner's corner
Topic: AmScope or Radical microscope for mycology beginner?
Replies: 12
Views: 3723

Re: AmScope or Radical microscope for mycology beginner?

While I agree that mycology is one area where you really need a high NA oil objective, I don't think it's extremely demanding per se. Phase is convenient, but if you are okay with some basic staining, then pretty much any microscope with a 100x 1.25 oil objective and an abbe condenser should work we...
by viktor j nilsson
Sun Feb 06, 2022 5:26 am
Forum: Microscopy accessories
Topic: Swapping the Phase Contrast Annuli in an Olympus NIC/Phase Condenser.
Replies: 2
Views: 1450

Re: Swapping the Phase Contrast Annuli in an Olympus NIC/Phase Condenser.

This is what I've done with my AH-NC NIC/phase contrast condenser for my Vanox AH. https://i.imgur.com/AmVg4LG.jpg I've replaced the phase rings with some Nikon Optiphot epi-DIC prisms. Through trial and error, it has allowed me to expand the range of objectives I can get good DIC with somewhat. As ...
by viktor j nilsson
Sun Jan 30, 2022 6:19 pm
Forum: Microscopes and optics
Topic: Full servicing of a NACHET NS400
Replies: 64
Views: 17997

Re: Full servicing of a NACHET NS400

That place seems like an elegant place to put filters if you are a producer that wants to make nice, ready made filter inserts. But are you sure that it is really the only place you can place those filters? The requirement is that a darkfield stop should be placed at a plane that is conjugate with t...
by viktor j nilsson
Sat Jan 29, 2022 1:52 pm
Forum: My microscope
Topic: Nikon Apophot
Replies: 31
Views: 8820

Re: Nikon Apophot

£800 in 1969? that is equivalent to £11000 today.

...according to:
https://www.inflationtool.com/british-p ... amount=800

Always fun, rarely useful! :D
by viktor j nilsson
Fri Jan 28, 2022 4:40 pm
Forum: My microscope
Topic: Nikon Apophot
Replies: 31
Views: 8820

Re: Nikon Apophot

Wonderful appearing scope - and the first Apophot I've seen. Thanks for posting it. It looks as if there is room to move the stage down and use 45mm parfocal objectives as well? Do the nosepiece and magnification changer use the same circular dovetails as later Nikon nosepieces? If so, it might be ...
by viktor j nilsson
Fri Jan 28, 2022 3:43 pm
Forum: My microscope
Topic: Nikon Apophot
Replies: 31
Views: 8820

Re: Nikon Apophot

dtsh wrote:
Fri Jan 28, 2022 3:39 pm
That looks like a very nice beast of an instrument!
What is the large, black, circular part on the lower right of your last image?
Magnification changer maybe?

What condenser is it? Looks like an achromat aplanat (nice!), but does this microscope come with any special illumination techniques?
by viktor j nilsson
Fri Jan 28, 2022 3:38 pm
Forum: My microscope
Topic: Nikon Apophot
Replies: 31
Views: 8820

Re: Nikon Apophot

Magnificent microscope! Definitely a close cousin - or perhaps nemesis! - of my Olympus Vanox AH. The short-barrel apochromats from this era can be quite affordable and are definitely worth chasing down. My Vanox also came with simple plan achromats that I didn't like, but I have since tracked down ...