This sounds as though the flashes may not be fully charged prior to each exposure. If you are using small flash units powered by AA batteries, you may need to use fresh batteries, and wait considerably longer than 3 seconds for them to fully recharge. Alternatively, you may wish to use an AC adapter...

Regardless, I'll stick it on the end of a 200mm tube lens and update this thread w/ test images after I receive it. . It's designed to be used with a 180mm tube lens (such as Olympus's UTLU), but will work fine with 200mm, albeit at 10/9 its nominal magnification, producing an 11.1x magnification. ...

Very interesting comparison! In case you missed it, Rik Littlefield previously posted some very persuasive images of the Doodlebug Beetle Black cardstock here:
https://www.photomacrography.net/forum/ ... =doodlebug

The first image is a pleasure to look at (in addition to the useful information conveyed).

edited to add: anyone tested the Edmund/Optem(I believe) 5x NA 0.225 objectives? If so, how good is the coverage? Mark Goodman tested it on a Nikon D300 (APS-C). His results can be found under Microscope objectives: http://www.coinimaging.com/lens_tests_new.html He was not impressed - his results c...

Hi all, I have question about Nikon M plan 20 0.40 210/0 ELWD. Is it normal, that objective has so much CA? Does anyone have similary result? Hello Filip, Some CA is often seen with this objective, but nevertheless it is still capable of producing good results. I did a comparison test on here eons ...

ray_parkhurst wrote:Looks like that "Apo" lens will have some strong red hues when focused 200um high.

And even more in this "Apo" lens!

I have an Rodagon D 120 f5.6 APO ( optimized at 1:1) Hello Sebastian, I previously had a copy of this lens. The Apo-Rodagon D 120mm f/5.6 is optimized for duplication at a 2:1 ration when used in the forward orientation, and at 1:2 when reversed. The lens would perform best as a taking lens at 1:2 ...

A Nikon 105mm f2.8 was unusable because of extreme vignetting, but the 135 f4.5 was quite good, as you noted. It produced about 7.2X measured with the 10X Nikon objective, and lost less peripherally than with the Mitty Leonard Just curious about the 135mm f/4.5, were you referring to the Nikon 135m...

However, the Olympus UIS system is designed only for an image circle of 22 mm, the UIS2 system for over 26 mm. This *might* limit the usable image circle of the U-TLU (which is a UIS component, not UIS2) to Micro 4/3, or possibly APS-C. Hello Enrico, I just reread your comments a little less hastil...

Hello Jin, I also have both tube lenses. Inspired by Charles Krebs' post here , I mounted an Olympus super-widefield trinocular head (which incorporates a U-TLU) on my Nikon UM-2 Measurescope, and use it with both Olympus UIS/UIS2 and Mitutoyo objectives. I have been very pleased with the results on...

Lou,

Thank you for the excellent review!

Best regards,
David

Sending you an email.

RobertOToole wrote:Then I lower the camera rig, usually without the objective