Search found 1607 matches
- Mon Apr 15, 2024 10:16 pm
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 29
- Views: 811
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
"I don't think a 50x HR 0.75 NA is going to fall (gently?) from the sky at me anytime for an unreal price :D" Well, you already have something better than that (same NA and with a FOV more than twice as large), and for $100! The 20x/0.75s are awesome but there is some difference between 1mm of work...
- Sun Apr 14, 2024 12:56 pm
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 29
- Views: 811
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
I am sorry to say the 10x and 20x are awesome jn good condition and should definitely be sought out. The 10x is pretty often available at affordable prices from what I've seen, the 20x a bit less often.
- Sun Apr 14, 2024 12:54 pm
- Forum: Equipment Discussions
- Topic: Lasertec 5x 0.25 HR Objective on eBay
- Replies: 48
- Views: 6256
Re: Lasertec 5x 0.25 HR Objective on eBay
I shoot aps-c, but on a microscope with coaxial illumination and epi DIC frequently used so messing with the infinity focus isn't really an option.
- Sat Apr 13, 2024 4:18 pm
- Forum: Equipment Discussions
- Topic: Lasertec 5x 0.25 HR Objective on eBay
- Replies: 48
- Views: 6256
Re: Lasertec 5x 0.25 HR Objective on eBay
The lack of coverslip correction on the engineering version would be handy but I'm keeping an eye out for one of those too, deals on S Fluors aren't as common as they apparently once were. Really I should be fine with my az 4x/0.40 at 8x, but having a good enough lens rarely stopped me before.
- Sat Apr 13, 2024 12:51 pm
- Forum: Equipment Discussions
- Topic: Lasertec 5x 0.25 HR Objective on eBay
- Replies: 48
- Views: 6256
Re: Lasertec 5x 0.25 HR Objective on eBay
Robert figured out the identity of these objectives and sent me the information shortly before his passing. Nikon Engineering used to advertise HR objectives which match the specs of the lasertec ones almost exactly (slight difference in working distance that probably comes down to a later design tw...
- Sat Apr 13, 2024 10:27 am
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 29
- Views: 811
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
I think my success rate on used mitutoyo objectives is about 80%, some duds but really not that many. Lower success rate on mitutoyo-alikes.
- Thu Apr 11, 2024 11:53 pm
- Forum: Equipment Discussions
- Topic: KEYENCE VH-Z75 what is it?
- Replies: 4
- Views: 179
Re: KEYENCE VH-Z75 what is it?
Yeah, this is a photo macroscope system, nice 10:1 parfocal zoom. It won't cover large formats though. The stand should be of excellent quality.
The main objective might be a Mitutoyo m plan apo. Worth examining.
The main objective might be a Mitutoyo m plan apo. Worth examining.
- Wed Apr 10, 2024 9:42 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: A flat plane of focus - does it really matter?
- Replies: 5
- Views: 258
Re: A flat plane of focus - does it really matter?
Usually flatness is corrected for before CA and other distortions so there is a correlation between flat fields and higher image quality, but it doesn't have to be so. The exceptions are usually either rare edge cases where flatness wasn't a priority but IQ was or just weird examples like the Lomo 3...
- Sat Apr 06, 2024 2:57 pm
- Forum: Equipment Discussions
- Topic: Using an Orthomat-W optical tube as a wide-field digital camera adapter for Orthoplan
- Replies: 16
- Views: 2687
Re: Using an Orthomat-W optical tube as a wide-field digital camera adapter for Orthoplan
Congratulations! It looks like it turned out great.
- Sat Apr 06, 2024 11:57 am
- Forum: Equipment Discussions
- Topic: Question about Optiphot and infinity corrected objectives
- Replies: 9
- Views: 314
Re: Question about Optiphot and infinity corrected objectives
Nikon 160 objectives are generally cover slip corrected so they wouldn't be a good match for wafer work. Their metallurgical objectives are 210 and have to be paired with an illuminator to provide the extra space. Technically they will work with the infinity illuminator and you can fit a finite head...
- Fri Apr 05, 2024 5:10 pm
- Forum: Equipment Discussions
- Topic: Question about Optiphot and infinity corrected objectives
- Replies: 9
- Views: 314
Re: Question about Optiphot and infinity corrected objectives
You can convert your optiphot to infinity correction by using this model of illuminator https://www.ebay.com/itm/135002917288 At the bottom it has the smaller dovetail of a finite Nikon -phot series and at the top it has the larger dovetail of Nikon infinity/Eclipse series microscopes. It convenient...
- Fri Apr 05, 2024 3:47 pm
- Forum: Equipment Discussions
- Topic: Any good 15x objectives?
- Replies: 8
- Views: 376
Re: Any good 15x objectives?
I would not bet the Shibuya ones are particularly great, and their 7xes and 15xes are usually priced even higher than genuine mitutoyos on the used market (though how that compares to the new price is unclear, the rBay lostings are of very low quality and could be priced higher than new for all I kn...
- Fri Mar 29, 2024 12:00 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: The pirate spider
- Replies: 11
- Views: 935
Re: The pirate spider
Read the site, it appears to be AI generated. The above post is contextually nonsensical and seems like it was drawn from sym p le's.
- Thu Mar 28, 2024 8:50 pm
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: The pirate spider
- Replies: 11
- Views: 935
Re: The pirate spider
This is not a real poster.
- Sat Mar 23, 2024 4:24 pm
- Forum: General Discussion Forum and Community Announcements
- Topic: Loss of Robert OToole
- Replies: 44
- Views: 1872
Re: Loss of Robert OToole
I don't know what to say. I was just talking with him in emails the other week, he found some amazing information for me and we were setting up a test of the lasertec 5x for the future. His lens tests and site were a big part of what got me excited about photomacro, trying different lenses and confi...