Search found 710 matches

by Scarodactyl
Sun Jul 25, 2021 8:59 pm
Forum: Photography Through the Microscope
Topic: Watermite
Replies: 1
Views: 7

Re: Watermite

Wow! Well done on the illumination, it came out great!
by Scarodactyl
Sat Jul 24, 2021 11:07 pm
Forum: Photography Through the Microscope
Topic: Diatoms in epi DIC
Replies: 6
Views: 156

Re: Diatoms in epi DIC

Thanks, I appreciate that!
Just in case anyone is interested, thr seller I got my rottermann/oblique base from has two more up for sale. This is the only time I've seen them offered.
https://www.ebay.com/itm/R176857-Leica- ... 4068231912
by Scarodactyl
Fri Jul 23, 2021 1:17 pm
Forum: Photography Through the Microscope
Topic: Diatoms in epi DIC
Replies: 6
Views: 156

Re: Diatoms in epi DIC

Here's a shot with my 40x/1.0 water immersion objective, which definitely has better resolution, and not just because of the higher NA--because of the splitting and separation of the two images before recombination epi DIC kind of puts its own separate limits on pushing up magnification above the pr...
by Scarodactyl
Thu Jul 22, 2021 12:34 am
Forum: Photography Through the Microscope
Topic: Diatoms in epi DIC
Replies: 6
Views: 156

Re: Diatoms in epi DIC

I appreciate that! I doesn't hold a candle to your results with transmitted DIC but it will benefit from further experimentation. Thanks for the tips! That should be a fun project, though I need to clear off what's already on my plate first. Just to be clear, this is one of the cheap normal label 20...
by Scarodactyl
Wed Jul 21, 2021 10:56 pm
Forum: Photography Through the Microscope
Topic: Diatoms in epi DIC
Replies: 6
Views: 156

Diatoms in epi DIC

I recently bought a couple slides from Diatom Lab so I'd have a good subject to look at in a future (likely futile) project of diy transmitted DIC. I've been having fun with these, looking at them with my new Leica "Rottermann contrast" base (which is basically a tunable oblique system for low magni...
by Scarodactyl
Wed Jul 21, 2021 11:17 am
Forum: Equipment Discussions
Topic: 20X Objective Quest
Replies: 5
Views: 219

Re: 20X Objective Quest

Mitutoyos aren't that bad if you really park eBay and watch for deals, and are also willing to return one if it's not good. The 20x is an awfully good objective.
I'd love to see results of that 20x test--sounds like an odyssey.
by Scarodactyl
Tue Jul 20, 2021 1:43 pm
Forum: Equipment Discussions
Topic: 20X Objective Quest
Replies: 5
Views: 219

Re: 20X Objective Quest

Lu plans are reputedly good but have notable axial CA. The mitutoyo 20x doesn't. On the other hand nikon lenses seem more durable than mitutoyos--I recently got a tu plan fluor 50x cheap with scratches and dings on the barrel but it still works great.
by Scarodactyl
Sat Jul 17, 2021 3:14 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: 180mm ED Nikkor 2.8 as tube lens?
Replies: 12
Views: 211

Re: 180mm ED Nikkor 2.8 as tube lens?

It really depends how much working distance you need for your illumination. Nikon doesn't really make objectives in mitutoyo's niche (with a few minor exceptions), nothing with the combination of color correction, working distance and large field coverage. But if you don't need gigantic field covera...
by Scarodactyl
Thu Jul 15, 2021 10:26 am
Forum: Equipment Discussions
Topic: Mity 20x NUV usability?
Replies: 3
Views: 91

Re: Mity 20x NUV usability?

It's probably going to be worse corrected for visible light than a normal 20x, with lower resolution and shorter wd. But I imagine it would still be an above average objective.
by Scarodactyl
Wed Jul 14, 2021 4:13 pm
Forum: Equipment Discussions
Topic: 100-125mm TL for Mitutoyo to cover FF sensor?
Replies: 9
Views: 256

Re: 100-125mm TL for Mitutoyo to cover FF sensor?

I know there was some success using them on medium format, though even in the best case the corners were not very good.
by Scarodactyl
Tue Jul 13, 2021 11:40 pm
Forum: Equipment Discussions
Topic: How much would a decent DIC microscope setup with Plan Fluors cost in Australia?
Replies: 16
Views: 507

Re: How much would a decent DIC microscope setup with Plan Fluors cost in Australia?

You can always be a trailblazer and buy one of the dic systems from China. I'm very curious how good they are. Where can these be found? I've had a look but am not entirely sure where they are or what optics they use. It seems they are probably good. . Just as an update, user 'farnsy' over at the m...
by Scarodactyl
Tue Jul 13, 2021 3:26 pm
Forum: Equipment Discussions
Topic: Barlow VS Eyepiece
Replies: 7
Views: 215

Re: Barlow VS Eyepiece

No worries, if you're not cruising amscope listings and the like you might never run into that terminology on a stereo microscope.
by Scarodactyl
Tue Jul 13, 2021 1:47 pm
Forum: Equipment Discussions
Topic: Barlow VS Eyepiece
Replies: 7
Views: 215

Re: Barlow VS Eyepiece

A high quality 2x will certainly double resolution--look at spec sheets for Leica or Zeiss greenough stereos (quoted in lp/mm rather than NA)--maybr not across the whole FoV but thede sre greenough stereos anyway. Likely a low end one will still do so in the very center of the FoV. Auxiliary objecti...
by Scarodactyl
Sun Jul 11, 2021 10:14 am
Forum: Equipment Discussions
Topic: Barlow VS Eyepiece
Replies: 7
Views: 215

Re: Barlow VS Eyepiece

A 2x barlowe/quxiliary lens increases resolution (and decreases working distance) allpwing mpre details to be made out. In contrast a higher power eyepiece increases magnification without any increase in resolution.
by Scarodactyl
Sat Jul 10, 2021 2:41 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Limnochares aquatica, Sessilida
Replies: 18
Views: 1869

Re: Limnochares aquatica, Sessilida

Just quote field of view, it is universal. 'Magnification' is too vague if you aren't speaking in a particular technical context. Even on a microscope the field of view at a given magnification can vary a lot since eyepiece/objective field numbers vary from 15mm or less on an antique system to 18-22...