Search found 1593 matches

by Scarodactyl
Sat Mar 23, 2024 4:24 pm
Forum: General Discussion Forum and Community Announcements
Topic: Loss of Robert OToole
Replies: 28
Views: 742

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...
by Scarodactyl
Sat Mar 16, 2024 9:23 am
Forum: Equipment Discussions
Topic: Is the era of Nikon 10x CF 0.3NA / 20x 0.46NA not-so-great for APSC? Also curious about 100x 0.95 or other high-na?
Replies: 4
Views: 244

Re: Is the era of Nikon 10x CF 0.3NA / 20x 0.46NA not-so-great for APSC? Also curious about 100x 0.95 or other high-na?

Havent read it all yet but these nikon CF infinity objectives were paired with eyepieces with a field number up to 26.5mm so aps-c is barely out of their nominal spec. Even though the cfi60 line has taken over as Nikon's main system some of these 45mm infinity cf objectives are actually still made f...
by Scarodactyl
Sat Mar 09, 2024 11:13 am
Forum: Equipment Discussions
Topic: Hoffman Modulation Contrast (HMC) for Leitz Orthoplan?
Replies: 6
Views: 968

Re: Hoffman Modulation Contrast (HMC) for Leitz Orthoplan?

Hmc is OK. I have a Zeiss inverted that has the condenser and a few objectives though some of the condenser filters are a bit delaminated. I like DIC a lot better.
by Scarodactyl
Tue Mar 05, 2024 12:14 am
Forum: Equipment Discussions
Topic: Mitutoyo 10x 0.42 M Plan APO HR lens adventure
Replies: 19
Views: 820

Re: Mitutoyo 10x 0.42 M Plan APO HR lens adventure

Let me send you a lasertec, that might help :D
by Scarodactyl
Mon Mar 04, 2024 9:49 pm
Forum: Equipment Discussions
Topic: Mitutoyo 10x 0.42 M Plan APO HR lens adventure
Replies: 19
Views: 820

Re: Mitutoyo 10x 0.42 M Plan APO HR lens adventure

Did the other two end up poorly packed as well? It was so odd since what I got from him was packed fine, though they were much smaller lenses.
by Scarodactyl
Mon Mar 04, 2024 9:48 pm
Forum: Equipment Discussions
Topic: ultra macro suggestions beyond 10x -- cheaper but ok objectives to play with? Sony aps-c
Replies: 36
Views: 1862

Re: ultra macro suggestions beyond 10x -- cheaper but ok objectives to play with? Sony aps-c

Huh. Did the body survive intact? I would think the objectives would be the main risk there. Nice piece of kit if it's working.
by Scarodactyl
Sun Mar 03, 2024 7:43 pm
Forum: Equipment Discussions
Topic: AstrHori 25mm f/2.8 2x-5x full-frame macro lens
Replies: 52
Views: 1833

Re: AstrHori 25mm f/2.8 2x-5x full-frame macro lens

That seems like very strong CA on the Laowa which surprises me given other reviews. I keep meaning to get one, if I do it will be interesting to see how they compare.
by Scarodactyl
Fri Mar 01, 2024 11:29 am
Forum: Equipment Discussions
Topic: About Wild/Leica M420 add-ons (objectives) and their (in)compatibility!
Replies: 4
Views: 271

Re: About Wild/Leica M420 add-ons (objectives) and their (in)compatibility!

I have heard the makrozoom ones can be modified to fit the apozoom and the results are good. That saod i have not tried it myself.
by Scarodactyl
Tue Feb 27, 2024 10:27 pm
Forum: Equipment Discussions
Topic: Leica M series 50 mm thread?
Replies: 4
Views: 298

Re: Leica M series 50 mm thread?

Someobe mentioned in an earlier thread that it was m50x1ph3, ie 1mm thread with 3 starts. I was not aware of this but it could be, they did that trick on the z series.
by Scarodactyl
Sun Feb 25, 2024 2:22 pm
Forum: Equipment Discussions
Topic: Lens with fungus and effect on image quality
Replies: 18
Views: 535

Re: Lens with fungus and effect on image quality

If you want to be desperate you'd disassemble the lens and manually clean the element, hoping it isn't the kind of mold that etches glass. If it's between the elements you can always try to separate them and reglue with optical cement. Will it be any good after doing that? Maybe?? But if you soak it...
by Scarodactyl
Sun Feb 25, 2024 3:39 am
Forum: Equipment Discussions
Topic: Lens with fungus and effect on image quality
Replies: 18
Views: 535

Re: Lens with fungus and effect on image quality

I suppose you could get dendritic crystallization but it sure looks like life.
by Scarodactyl
Sat Feb 24, 2024 3:30 pm
Forum: Equipment Discussions
Topic: Advice Needed
Replies: 9
Views: 444

Re: Advice Needed

It is my old Olympus STM measuring microscope--there was some unfortunate miscommunication on which features were essential and how it would be used (to be fair mitutoyos are a bit of an unusual choice to use primarily for looking at slides). It's a nice setup for oblique epi illumination, we didn't...
by Scarodactyl
Fri Feb 23, 2024 2:54 pm
Forum: Equipment Discussions
Topic: Nikon Eclipse DIC PF and PA objective prism sliders
Replies: 3
Views: 243

Re: Nikon Eclipse DIC PF and PA objective prism sliders

I have found the system to be surprisingly forgiving, with good results even on plan achromats. I also added an olympus w25xhr prism to the condenser (with a little modification) and it works well with the system, similar to the H prism.