At present I see your photos are listed as "not downloaded yet." That said, your 1/1.8" sensor size should do OK with around a .5x reduction lens fitted ahead of a C-mount camera (if that's how your camera is mounted). That assumes your AmScope microscope doesn't already have a photo relay lens in ...

Will be back in town in the later part of next week (attending annual pathology conference in Baltimore, MD). I will re-run same test using my old Micro Nikkor 55 mm and again 60 mm Nikkor lens at 5.6 and 8.0 and post some images... Enjoy your conference! I expect that a snapshot of your setup woul...

I can read that as saying that the Nikkor 60 mm lens was set on infinity focus ("minimal extension"), in which case the results make perfect sense. After the clarification I respectfully disagree... that it makes perfect sense... I agree with your disagreement. I had casually assumed that "minimal ...

I would like to ask Rik: how complicated can it be to implement something similar in Zerene? I suppose, that what is needed is to detect the "bad/blurry" areas in DMAP and automatically replace them with PMAX, maybe on the fly, having PMAX already done before DMAP. But maybe this detection is alrea...

Thank you for the feedback.

I will be interested to read the new topic so that I can see what difficulties you are running into with stitching.

--Rik

I thought I was prepared for this since Robert's earlier problems.

But it hits harder than I expected.

A remarkable man. I will miss him a lot.

--Rik

Nothing in the ad looks very good for macro. They do not give any indication of step size, and the drive mechanism appears to be direct pull on a toothed belt. This device appears to be intended for use as a video/animation slider; note that all the illustrations show the camera either pointing off ...

60 mm Nikkor with PB-4 bellows; Nikon_60MM_BellowsPB-4.jpg 60 mm Nikkor without Bellows; Nikon_60MM.jpg Only difference is ~ 500 microns short with Bellows vs. Macro lens mounted to camera, very close to 1:1 mag. Nikon Z6II flange to sensor is 16.00 mm vs. on Nikon DSLR (D850) is 46.5mm..... Really...

One drawback of LEDs that I have been noticing is banding at high shutter speeds (1/500 and faster). Yeah, that's something I'm definitely curious to find out about. Heck, even if 1/500s is fast enough to get a non-shaky exposure given my system stability (or instability), or if I run into banding ...

There's a new channel on YouTube, https://www.youtube.com/@naturefold , with a young photographer named Alexis whose technique and results are masterful. He shoots in fast burst mode using a sort of lean-in technique, with heavily diffused flash. At first I was distracted by what appear to be severa...

Bill and I have spent much time discussing his excellent images offline. I would like to add here a link to some external documentation that may clarify the structure. https://www.sciencedirect.com/science/article/abs/pii/S002219101930191X goes to "Structure, properties and functions of the forewing...

Yes, like tiny waffles!

Doing a Google image search for pollen with waffle pattern produced one hit with a couple of very good matches:


Unfortunately the full article is behind a paywall, and I don't care enough to pay.

--Rik

On second study, I'm not seeing a bi-color mandible at all.

What's happening is that the mandible on the right side (critter's left) is tipped upward/inward at a very unusual angle, exposing a darker structure that would ordinarily be hidden behind it.

--Rik

Interesting bi-color mandible on that beast!

--Rik

I am currently scanning film with Sigma 70mm art. However, this lens has quite a high and unpleasant contrast, in which I have the impression that details are lost. This sounds to me like your darks are getting clipped at black, or at least pushed below the black threshold of your monitor. This oft...