Search found 145 matches

by martincito
Sun Apr 01, 2018 5:22 am
Forum: Equipment Exchange
Topic: Optiphot condenser block
Replies: 22
Views: 8858

I have a surplus Labophot condenser block available.
by martincito
Mon Mar 05, 2018 9:45 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Olympus CHK microscope
Replies: 2
Views: 5033

Thanks Alan. I found the CHK2 brochure on your excellent site. The item certainly looks like the CHK2 but is advertised as plain CHK. I'll send the vendor a message.
by martincito
Mon Mar 05, 2018 6:42 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Olympus CHK microscope
Replies: 2
Views: 5033

Olympus CHK microscope

I'm considering a plan B in case me efforts to "fix" my Labophot focus block render it unusable. I've seen an Olympus CHK stand for sale. I saw a reference by John Hallmén to this microscope in a 2010 posting about a Nikon 50x lens: With Nikkor 200/4 AI on top of a Olympus CHK frame with the 50x in ...
by martincito
Sat Mar 03, 2018 2:23 am
Forum: Equipment Discussions
Topic: Broken plastic fine focus gear
Replies: 42
Views: 11247

Thanks for these replies Ray and Chris. I'll start summoning up the courage to open up the focus block. If I find anything interesting I'll post an update.
-Martin
by martincito
Fri Mar 02, 2018 4:01 pm
Forum: Equipment Discussions
Topic: Broken plastic fine focus gear
Replies: 42
Views: 11247

I have a Labophot focus block built into a rather amateurish imitation of a stepping motor driven Bratcam. I put it together several years ago and am reluctant to dismantle it as it is more or less doing what I want and experience has taught me to resist the temptation to try and fix everything that...
by martincito
Fri Jun 12, 2015 3:14 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Spider palp - cross-eyes versus parallel-eyes stereo?
Replies: 6
Views: 2226

Thanks Rik. I'll give it a try :D
by martincito
Fri Jun 12, 2015 2:19 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Spider palp - cross-eyes versus parallel-eyes stereo?
Replies: 6
Views: 2226

Charles Krebs wrote:...most people that can find it far easier to view cross-eyed stereo.
Thanks Charles. This is certainly true for me...
by martincito
Fri Jun 12, 2015 2:18 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Spider palp - cross-eyes versus parallel-eyes stereo?
Replies: 6
Views: 2226

Just swap the images over. Thanks Chris I expect this is just me being slow on the uptake, but I'm not sure how to swap them over. Is it the order you select them before using the stereo tools? I find it easy to cross my eyes so maybe I should stick with cross-eyes stereo because at least it works ...
by martincito
Thu Jun 11, 2015 1:20 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Spider palp - cross-eyes versus parallel-eyes stereo?
Replies: 6
Views: 2226

Spider palp - cross-eyes versus parallel-eyes stereo?

This is a palp from a Anelosimus vittatus spider. The spider was in 70% alcohol positioned on a layer of glass beads in an excavated glass block and was photographed using a Tucsen ISH1000 10 MP microscope camera fitted in place of the eyepiece of my Russian-built Lomo Bimam R13 compound microscope ...
by martincito
Mon Jan 05, 2015 5:09 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Ormyrus nitidulus (Hymenoptera: Chalcidoidea: Ormyridae)
Replies: 15
Views: 5173

I'm amazed at both these efforts, and would be unable to do anything as good. Unless I've misunderstood it, Chris keeps the original image of the "bad" leg, which has a tibial spur which could be vital for identifying the insect. This disappears if the opposite leg is used to create a new "bad" leg....
by martincito
Mon Jan 05, 2015 1:50 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Ormyrus nitidulus (Hymenoptera: Chalcidoidea: Ormyridae)
Replies: 15
Views: 5173

Nice work Koorosh, and also GemBro!
GemBro, It would be interesting to hear exactly what you did to improve the image.
by martincito
Mon Dec 29, 2014 11:06 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Tiny Insect: Any help please in IDing it?!
Replies: 8
Views: 1505

Thanks for these photos and explanation. With subjects that may try to escape, do you shoot them through the glass?
by martincito
Mon Dec 29, 2014 2:13 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Tiny Insect: Any help please in IDing it?!
Replies: 8
Views: 1505

I would be interested to see photos of your perspex boxes.
by martincito
Fri Dec 05, 2014 2:57 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Some shots with the JML 20x NA.30
Replies: 5
Views: 1330

The JML picture definitely shows more detail than the crop. For what it's worth (those JMLs were pretty cheap), I'd keep it and put up with swapping sets. Thanks for these useful comments. I especially like your subtle highlighting of non-lens areas for improvement! I guess the lens was cheap compa...
by martincito
Thu Dec 04, 2014 9:32 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Some shots with the JML 20x NA.30
Replies: 5
Views: 1330

Here is a side-by-side comparison of the head of a small wasp. The image on the left was done with the JML 20x NA.30, the one on the right was done with my "old" set-up of a Nikon CFI Nikkor 200mm f4 as a tube lens for a Nikon CFI BE Plan Achromat 10x Objective. I've cropped the right-hand image to ...