Search found 635 matches
- Sun Jan 06, 2019 6:45 pm
- Forum: Equipment Discussions
- Topic: Sensor cleaning - using swabs more than once
- Replies: 12
- Views: 7094
- Tue Jan 01, 2019 6:16 am
- Forum: Equipment Discussions
- Topic: Leica HR 4x/0.45 Objective On Ebay How is That Even Possible
- Replies: 22
- Views: 5694
edited to add: anyone tested the Edmund/Optem(I believe) 5x NA 0.225 objectives? If so, how good is the coverage? Mark Goodman tested it on a Nikon D300 (APS-C). His results can be found under Microscope objectives: http://www.coinimaging.com/lens_tests_new.html He was not impressed - his results c...
- Mon Dec 31, 2018 8:39 am
- Forum: Equipment Discussions
- Topic: nikon M plan 20x 0.40 elwd - CA question
- Replies: 10
- Views: 2420
Re: nikon M plan 20x 0.40 elwd - CA question
Hi all, I have question about Nikon M plan 20 0.40 210/0 ELWD. Is it normal, that objective has so much CA? Does anyone have similary result? Hello Filip, Some CA is often seen with this objective, but nevertheless it is still capable of producing good results. I did a comparison test on here eons ...
- Sun Dec 30, 2018 5:20 pm
- Forum: Equipment Discussions
- Topic: Schneider 28mm f2.8 Componon Perf Stacked is Extremely Good
- Replies: 32
- Views: 7139
- Sun Dec 30, 2018 11:08 am
- Forum: Equipment Discussions
- Topic: Schneider 28mm f2.8 Componon Perf Stacked is Extremely Good
- Replies: 32
- Views: 7139
I have an Rodagon D 120 f5.6 APO ( optimized at 1:1) Hello Sebastian, I previously had a copy of this lens. The Apo-Rodagon D 120mm f/5.6 is optimized for duplication at a 2:1 ration when used in the forward orientation, and at 1:2 when reversed. The lens would perform best as a taking lens at 1:2 ...
- Thu Dec 20, 2018 4:50 pm
- Forum: Equipment Discussions
- Topic: Tube lens tests for MFT and FF
- Replies: 31
- Views: 13320
A Nikon 105mm f2.8 was unusable because of extreme vignetting, but the 135 f4.5 was quite good, as you noted. It produced about 7.2X measured with the 10X Nikon objective, and lost less peripherally than with the Mitty Leonard Just curious about the 135mm f/4.5, were you referring to the Nikon 135m...
- Mon Dec 10, 2018 5:23 am
- Forum: General Discussion Forum and Community Announcements
- Topic: Insect decline
- Replies: 26
- Views: 20835
- Wed Nov 28, 2018 12:10 pm
- Forum: Equipment Discussions
- Topic: tube lens comparison
- Replies: 17
- Views: 5720
Re: tube lens comparison
However, the Olympus UIS system is designed only for an image circle of 22 mm, the UIS2 system for over 26 mm. This *might* limit the usable image circle of the U-TLU (which is a UIS component, not UIS2) to Micro 4/3, or possibly APS-C. Hello Enrico, I just reread your comments a little less hastil...
- Tue Nov 27, 2018 6:03 pm
- Forum: Equipment Discussions
- Topic: tube lens comparison
- Replies: 17
- Views: 5720
Hello Jin, I also have both tube lenses. Inspired by Charles Krebs' post here , I mounted an Olympus super-widefield trinocular head (which incorporates a U-TLU) on my Nikon UM-2 Measurescope, and use it with both Olympus UIS/UIS2 and Mitutoyo objectives. I have been very pleased with the results on...
- Tue Nov 27, 2018 9:52 am
- Forum: Equipment Discussions
- Topic: Tube lens tests for MFT and FF
- Replies: 31
- Views: 13320
- Sun Nov 11, 2018 7:46 am
- Forum: Equipment Exchange
- Topic: Wanted: Nikon CFI 10X objective
- Replies: 4
- Views: 4242
- Sun Oct 14, 2018 6:17 pm
- Forum: Equipment Discussions
- Topic: Stacked Lens vs APO objectives at 4x with Surprising Results
- Replies: 88
- Views: 11379
- Sun Oct 14, 2018 2:36 am
- Forum: Equipment Discussions
- Topic: Lee diffusers?
- Replies: 14
- Views: 2336
- Sat Oct 13, 2018 4:34 pm
- Forum: Photography Through the Microscope
- Topic: NEW Parasite Image Database - The Monster Hunter's Guide!
- Replies: 6
- Views: 1292
- Sat Oct 13, 2018 12:46 pm
- Forum: Equipment Discussions
- Topic: Lee diffusers?
- Replies: 14
- Views: 2336
Hello Carlos, I just took a couple of quick pictures showing cylinders of Lee filter material on a Mitutoyo and an Olympus objective. I think you can see that they are in little danger of deformation. I like to write on them with an extra fine point Sharpie marker so I don't have to waste time rumma...