I was shooting my first hepaticas of the season and got a little passenger too. Five image stack, Canon 6DmkII + Sigma 135 with 20mm extension. Not perfect but came out as a decent print.
Anemone hepatica by Rane Olsen, on Flickr
- Rane
Anemone hepatica + a bonus bug
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Thanks Lou! Yes, Sigma 135/1.8 is an impressive piece of glass. I wonder the amount of adapter rings needed to get down to Mitu threads from 82mm though..or RMS threads even. I have just started my journey with microscope lenses, only have 4x AmScope and Lomo 3,7. Eventually this disease will lead into Mitu's and tube lenses for sure...Lou Jost wrote:Very beautiful. That Sigma 135 is a great lens by itself, and an even better tube lens for microscope objectives.
- Rane
Mike, I will have to check that. I don't have a full-frame sensor but I can shift my MFT sensor out to that distance diagonally and see if it vignettes.
Rane, the adaptors are easy. One 82-77 step down and one Kood 77-52mm step-down, which threads to any of my 52mm-objective thread step-down filters. The real problem with that lens is that it is heavy and lacks a tripod collar. I have sometimes mounted a tripod collar in the infinity space between objective and lens...in vertical set-ups that is not too bad.
The other problem with it is it's lack of a manual aperture ring or lever in the mount, unlike Sigma's earlier Art lenses for Nikon which at least had the stop-down lever. This isn't fatal since we normally don't stop down a tube lens.
It is my best tube lens. Really good.
Lou
Rane, the adaptors are easy. One 82-77 step down and one Kood 77-52mm step-down, which threads to any of my 52mm-objective thread step-down filters. The real problem with that lens is that it is heavy and lacks a tripod collar. I have sometimes mounted a tripod collar in the infinity space between objective and lens...in vertical set-ups that is not too bad.
The other problem with it is it's lack of a manual aperture ring or lever in the mount, unlike Sigma's earlier Art lenses for Nikon which at least had the stop-down lever. This isn't fatal since we normally don't stop down a tube lens.
It is my best tube lens. Really good.
Lou