Search found 2910 matches

by Chris S.
Mon Jan 18, 2021 2:20 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Advice please: High NA air objective with small WD
Replies: 15
Views: 3777

Re: Advice please: High NA air objective with small WD

Horst, Yes, this is still very much of interest to me. One thing I’d like to do is look into holes as you mentioned. For example, in my post on Papilio ulysses wing scales , I’m fairly sure the black spaces in the lattice work are not through-holes, but light-absorbing dimples or shallow pits. Even ...
by Chris S.
Mon Jan 18, 2021 2:05 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Looking for advice to improve sharpness
Replies: 7
Views: 327

Re: Looking for advice to improve sharpness

Mycobiont, Moving from images A through E, it appears that noise is increasing. Any idea why this is? Are you increasing your ISO? Or is your histogram moving toward the left? Plastic from most milk jugs, in my experience, is too close to transparent to be a good diffuser. To test it, try looking at...
by Chris S.
Sun Jan 17, 2021 7:43 pm
Forum: Equipment Discussions
Topic: Can someone tell me the difference between these two Nikon apos?
Replies: 11
Views: 285

Re: Can someone tell me the difference between these two Nikon apos?

Thanks! I don't suppose you can tell me the difference btween these three 20X plan apo objectives? (snip) https://www.ebay.com/itm/Nikon-20x-0-75-CFN-Plan-Apo-Microscope-Objective/224148776818 I can't speak to the other objectives listed, but this one is of the well-known N-Plan series, as pictured...
by Chris S.
Sun Jan 17, 2021 12:48 am
Forum: Equipment Discussions
Topic: Nikon Industrial Lens Website PDF
Replies: 2
Views: 169

Re: Nikon Industrial Lens Website PDF

Thanks, Robert. Those are handy resources to have here.

Of course, seeing them cost me a wince-producing amount of time down the Rayfact rabbit hole. (And I don't need any more lenses right now! I don't, I dont. . . .)

--Chris S.
by Chris S.
Wed Jan 13, 2021 3:39 am
Forum: Equipment Discussions
Topic: Mitutoyo 7,5x MPlanApo
Replies: 9
Views: 377

Re: Mitutoyo 7,5x MPlanApo

(per Google translation): Hello, in Mitutoyo's MPlanApo series the 7.5x is much more expensive than the 5x or 10x (almost double). This model looks better than the others, is this difference worth choosing for our use? What is the difference? I wonder if it's worth reselling my 10x to invest in thi...
by Chris S.
Wed Jan 13, 2021 3:11 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Samsung NX1 e-shutter
Replies: 2
Views: 205

Re: Samsung NX1 e-shutter

Ben, I don't know the answer to your question, but since no one else has taken a shot, I'll share a few ideas, some of which you've likely already considered. First, I shoot high-magnification macro without electronic shutter, using continuous illumination. To keep shutter-induced vibration from sof...
by Chris S.
Sat Jan 09, 2021 6:21 pm
Forum: Equipment Discussions
Topic: Canon Lenses usable on a Nikon Z Camera with new Fotodiox adapter
Replies: 2
Views: 216

Re: Canon Lenses usable on a Nikon Z Camera with new Fotodiox adapter

Robert, The other way around is possible of course but the market would be small since infinity focus is impossible. Agreed, such an adapter would only be compelling for use with the Canon MP-E 65 macro lens, where infinity focus is irrelevant. However, this particular lens is the only Canon lens th...
by Chris S.
Sat Jan 09, 2021 3:48 am
Forum: Equipment Discussions
Topic: Canon Lenses usable on a Nikon Z Camera with new Fotodiox adapter
Replies: 2
Views: 216

Canon Lenses usable on a Nikon Z Camera with new Fotodiox adapter

I received an email from Fotodiox, introducing a new product: " Fusion Smart AF Adapter for Canon EF/EF-S Lenses to Nikon Z-mount Bodies "Looking for more lenses for your Nikon Z camera? Grab a Fusion adapter and some EF mount glass to fill the gaps! Check out the latest addition to our line of Fusi...
by Chris S.
Sat Jan 09, 2021 2:12 am
Forum: Equipment Discussions
Topic: Raynox dcr150 custom tube lens
Replies: 21
Views: 812

Re: Raynox dcr150 custom tube lens

leanderborg220, Enlarging on some above comments: The various ultra-black paints seem to have durability issues, and likely do a poor job at suppressing low-angled, glancing light--which can be a large and difficult-to-trace cause of flare with tubes and couplers in macro setups. Flocking every poss...
by Chris S.
Mon Jan 04, 2021 4:02 pm
Forum: Equipment Discussions
Topic: 50X objective recommendation
Replies: 31
Views: 1116

Re: 50X objective recommendation

BTW, what about the Mitutoyo M 50 / 0.65? https://www.photomacrography.net/forum/viewtopic.php?f=27&t=42479&hilit=Two+bargains The Mitutoyo M Plan 50x/0.65 objectives I've seen are optimized for NIR or UV, not VIS. While these objectives certainly cover portions of the VIS spectrum reasonably well,...
by Chris S.
Wed Dec 30, 2020 2:19 am
Forum: Nature Photography -- Macro and Close-up
Topic: Having Fun With the Opteka f/4 1:1 Wide Angle Macro Lens
Replies: 5
Views: 449

Re: Having Fun With the Opteka f/4 1:1 Wide Angle Macro Lens

Capital images, Mark--I can see how that lens would be fun. You're definitely creating images that most other photographers would neither envision nor be able to make. I wouldn't crop the damselfly shot--like it as is. I wonder how you got so close to that frog--did you sit very still and wait for h...
by Chris S.
Sun Dec 27, 2020 8:45 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: A Review of the Inexpensive Opteka 15mm f/4 1:1 Wide Angle Macro Lens
Replies: 6
Views: 360

Re: A Review of the Inexpensive Opteka 15mm f/4 1:1 Wide Angle Macro Lens

Really thorough and thoughtful review, Mark. :D Thanks for posting it.

--Chris S.
by Chris S.
Sat Dec 26, 2020 1:03 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Liquid lenses for focus stacking
Replies: 5
Views: 395

Re: Liquid lenses for focus stacking

Argu, One video creator you linked to is Ben Krasnow, who is among my favorite educator/experimenters on Youtube. Must admit that his explorations of building an electron microscope, and of refurbishing a derelict commercial electron microscope, dissuaded me from attempting such things myself. A sou...
by Chris S.
Wed Dec 23, 2020 3:47 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Windows of Papilio ulysses wing scale
Replies: 16
Views: 1866

Re: Windows of Papilio ulysses wing scale

David,

Thanks for your constructive criticism! :D I appreciate it.

It's funny, how different brains process stereo. My brain can not see what David points out. But I'll try to make and post another pair adjusted per his suggestion. I'm new to stereo--this was my first.

--Chris S.
by Chris S.
Tue Dec 15, 2020 2:20 pm
Forum: Equipment Discussions
Topic: looking for laborlux D manual
Replies: 2
Views: 480

Re: looking for laborlux D manual

Henry,

I don't have what you're looking for, but do have the following. Are any of them close enough to be helpful?

Laborlux.JPG

--Chris S.