Search found 440 matches

by Scarodactyl
Sat Oct 17, 2020 11:19 am
Forum: Equipment Discussions
Topic: New Mitutoyo apo 10x
Replies: 35
Views: 1000

Re: New Mitutoyo apo 10x

I have been trying to separste a couple doublets out of a Nikon stereo. They're not delaminated per se, but they developed tiny bubbles as well as crystals in the lens cement which did no good to the image. These spots are remjniscent od thr crystals I saw but it'd be hard to say without a closer lo...
by Scarodactyl
Sat Oct 17, 2020 11:09 am
Forum: Equipment Discussions
Topic: New Mitutoyo apo 10x
Replies: 35
Views: 1000

Re: New Mitutoyo apo 10x

Yeah, that's definitely not good to see. Another good reason everyone should own a* stereo microscope, since you'd be able to make out the finer details of that pretty readily.



*by 'a' I mean 'a half dozen'
by Scarodactyl
Fri Oct 09, 2020 1:49 pm
Forum: Equipment Discussions
Topic: Nikon BHMJ adaptation
Replies: 7
Views: 2924

Re: Nikon BHMJ adaptation

Another very impressive design! I just got one of these recently--I have the boom stand attachment for it but it is 'conveniently' designed to take a 24.5mm post. This looks much nicer than that!
by Scarodactyl
Thu Oct 08, 2020 4:31 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Alien
Replies: 9
Views: 367

Re: Alien

Woaaaaa that's a standout shot!
by Scarodactyl
Thu Oct 08, 2020 12:47 am
Forum: Equipment Discussions
Topic: Lomo 1.7X projective photoeyepiece
Replies: 24
Views: 677

Re: Lomo 1.7X projective photoeyepiece

https://www.ebay.com/itm/402320510838
I just came across this listing for a full set. There are some lenses in the adapter, and I wonder if they are essential for image quality.
by Scarodactyl
Wed Oct 07, 2020 6:28 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: sunset moth
Replies: 17
Views: 586

Re: sunset moth

I also picked one up recently, someone had inadvertently removed the df shell from it via mistreatment (shell was bent so it wouldnt even go back on)--they do unscrew with enough work apparently. I'm amazed it still produces a good image.
by Scarodactyl
Sun Oct 04, 2020 9:46 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Wulfenite on Mimetite
Replies: 6
Views: 432

Re: Wulfenite on Mimetite

Wulfenite just has that look, or at least can. Classic Red Cloud material as an example is as saturated as can be.
by Scarodactyl
Fri Oct 02, 2020 10:10 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Eyepiece projection, yes or not??
Replies: 14
Views: 478

Re: Eyepiece projection, yes or not??

A genuine Nikon pl 2.5x is not that expensive. It would be worth trying the correct one for your system.
by Scarodactyl
Thu Oct 01, 2020 11:38 pm
Forum: Photography Through the Microscope
Topic: 2 more diatoms
Replies: 3
Views: 254

Re: 2 more diatoms

That diatom is flagellin' like a felon.
by Scarodactyl
Thu Oct 01, 2020 8:28 am
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 139
Views: 14319

Re: shared reference silicon wafer for comparisons

In addition to Mitutoyos outperforming their nominal specs, it is a common thing to copy the original item's spec sheet whether your imitation really matches it or not.
by Scarodactyl
Wed Sep 30, 2020 1:46 pm
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 139
Views: 14319

Re: shared reference silicon wafer for comparisons

Those do look very interesting. Definitely curious about performance and pricing.
by Scarodactyl
Wed Sep 30, 2020 9:19 am
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 139
Views: 14319

Re: shared reference silicon wafer for comparisons

Thr optem HRs are non apo and also have small field coverage. They're meant for putting on zoom lenses attached to cameras with tiny sensors. Problem is many of the general mitutoyo clones are meant for that context and can get away with cutting corners mitutoyo doesn't.
by Scarodactyl
Tue Sep 29, 2020 11:15 pm
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 139
Views: 14319

Re: shared reference silicon wafer for comparisons

Yeah, these are the L/HL marked Chinese ones. Maybe made by Kozo or similar. From what I remember some of the generic 5xes test ok but inferior to mitutoyos (especially in off-center performanc), and higher mags are worse, but details have been scant (possibly in the 'so bad serious testing is point...
by Scarodactyl
Tue Sep 29, 2020 2:08 pm
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 139
Views: 14319

Re: shared reference silicon wafer for comparisons

Some of the mitutoyoalikes are pretty good, others awful. I'm not sure if any of them match mitutoyo's insane coverage even if they can perform similarly within their specs. I have a motic 10x which seems to do about as well to my real mitutoyo 10x with ultra widefield eyepieces but my olympus (bh2-...
by Scarodactyl
Sun Sep 27, 2020 1:01 am
Forum: Equipment Discussions
Topic: Lomo 1.7X projective photoeyepiece
Replies: 24
Views: 677

Re: Lomo 1.7X projective photoeyepiece

It had fairly low contrast in the eyepieces as well. Just had another look and I picked a pretty ugly part of the chip for this. coaxial illumination does tend to wash some things out. Given how bad the corners were doing with the NFK on aps-c I imagine on FF it would be really bad. On the wild/leit...