Dear all, thanks again for all the valuable comments! These really teach me a lot. Today I did some trials with my Olympus and everything seems to work as it should. I´m still waiting for two little pieces of gear to set up a small vertical "focus bracketing stand", then I can do some more serious m...

Dear Rik and Lou, thanks a lot your your comments, that is exactly the information I was hoping for (also the theoretical background is helpful -- I tried to read all the messages on the subject but found it hard to extract that information)! Now I can start experimenting! @Rik: I hdid actually read...

Hello again, after playing around with some of my adapters and objectives, it turns out that I can answer the first question myself. I was under the wrong assumption that at least for some of the heavier microscope objectives (Mitutoyo) the mounting thread was longer than it actually is. But in fact...

Dear all, this post is mostly directed to Lou Jost, who has mentioned the use of this lens as tube lens for several microscope objectives and focus bracketing with MFT cameras in several posts ( I tried to PM him, but for some reason my message did not get through -- this may be of more general inte...

Hello, I´m a happy user of the Stackmaster... Some information on the stack unit (including the stackmaster) can be found here: https://www.mindat.org/article.php/2254/My+Black+BOX+or+.+.+.+.+new+Stacking+Device and here: https://www.mindat.org/article.php/2089/My+setup+chronology The rail is very m...

Thanks for the welcome! Yes, I am using a camera with an APS-C format sensor (EOS 40d) -- forgot to mention that. At least down to 135 mm -- possibly down to 100 mm -- it seems to be working without noticeable vignetting. I promise to post some examples once I feel more comfortable with the techniqu...

As a newly registered user I first wish to thank all contributors of this amazing forum for your inspiring work. My main interest is mineral photography, and while I am really an absolute beginner to the world of photomacrography, I am in the process of assembling a small set of equipment to get goi...