These wasps have such beautiful eyes. You have done a superb job eliminating the disruptive reflections!

Your images are all very, very nice!

It has been a long time since I've posted on here, so I thought I that I would share these butterfly eggs from last spring. All of these were taken with Mitutoyo M Plan Apo objectives on a Nikon UM-2 Measurescope, with an Olympus super-wide trinocular head (incorporating a 180mm tube lens). GulfFrit...

Wonderful discovery and images! I can also confirm (from purchased packets) that the seeds of Portulaca oleracea are darker, less textured, and considerably larger than the colorful seeds of Portulaca grandiflora . I'm sure that they will look even better when they are collected directly from the pl...

Congratulations on your find! I just copied a couple of pages from a Rodenstock catalog that you may find useful (although there is the strong possibility that you already have this information )

......I thought it was a symmetrical lens so I didn't bother! The tube lens used for the sample is a Rodenstock APO-Gerogon and it according to Rodenstock it is symmetrical. They were designed to be used in reduction or mag without having to remove the lens to reverse it. Range was given from 1:3 t...

Two weeks ago I received a package from Shanghai in 5 days via DHL. By contrast, our post offices in central Texas just reopened this morning after a week's inactivity. https://communityimpact.com/austin/central-austin/weather/2021/02/18/us-postal-service-operations-in-austin-suspended-indefinitely-...

These are some images I just took with the Olympus UPlanApo 4x/0.16, UMPlanFL 10x/0.30, and an LMPlanFL 20x/0.40 on a Sony A6300, using an ITL200 tube lens. The predicted magnification would have been 200/180 times each objective's nominal magnification - I measured 4.38x rather than the expected 4....

I found this lens used at a good price and being aware that Charles Krebs uses it with excellent results I bought it. It came pretty dirty and after a good cleaning I'm testing it. I find the results pretty good although my testing abilities and subjects are not the best. Chromatic aberrations are ...

I just received one of the Gretag 120s from Ray a few days ago - it was in better condition than I had anticipated from the description.

David

Thanks, good to know there are at least two variations of these locking screws. You are welcome. Just to clarify, I measured a locking screw from a Unifoc-58, not the smaller Unifoc-12 for which Ray needed replacement screws. I was hoping to appropriate it, at least temporarily, for the MacroVaron,...

Just wondering, are these thumbscrews identical to the ones from the Xenoplan machine vision line of lenses? Anyone owning both types of lenses? I measure the Xenoplan ones to have a width of 2.4mm over the peaks of the screw thread and be 4mm in length, with the final mm close to the knurled head ...

Doesn't the 105/5.6 feature a Schneider Optics V-groove dovetail mount? I could be wrong. If I'm not, an original Schneider adaptor that converts the dovetail to M42 can be had for around $50 used. Not cheap but you do get Schneider's quality. The Schneider mounts are V38, but the Linos 5.6 inspec....

I just got mine. It was left on our front porch yesterday, even though it had been marked as delivered quite a while ago. I assume it was placed in the wrong mail box, and our anonymous neighbor had their own reasons for the delay. Anyway, it is broken into numerous pieces, but one of them is large ...

An addendum: On Thursday the U.S. Trade Representative proposed an additional 25% tariff on German lenses (as well as increased import fees on many other items). This proposal is open to public comment until July 26th. https://ustr.gov/sites/default/files/enforcement/301Investigations/Review_of_Acti...