ray_parkhurst wrote: ↑
18 Jan 2020 18:51
I don't think a reversed 18-55 is going to give you high enough magnification for this work.
I have owned at lest 3 macro lenses, but I rarely used them for that, I prefer other subjects.
Actually I found it to be quite good, however the torus shaped focal plane you get reversing a lens, and the fact that an electronic lens doesn't let you change the aperture when it isn't connected introduced some difficulty. I intended to do focus stacking, but never got around to it. I didn't want to buy a microscope. The wider the lens the more magnification you get when it is reversed. I photographed a few cartridges for school work but haven't returned. Can't seem to find those photos. I have a hard time seeing the focus that well on my new camera. I tried taking a few more, but I have a different camera now, different sensor size. It doesn't like film accessories, and i's firmware seems much less friendly to them than the last, probably to "encourage" us to replace our working gear with new gear.
Anyway I thought I posted pictures on the close ups thread, but I guess not. I kinda rushed a few new photos by eye, I didn't break out my monitor. I forgot what a pain it is to focus on something that small. I think it was only slightly easier with Canons dedicated micro lens, the one fixed to a rail. Looking through, I should have taken more time, these aren't focused as well, or the way, that I'd like. That said, I think they are close enough to show the magnification. The slightest twitch of the finger when adjusting these may as well be a mile, so If you can't take your time I don't recommend this. You may have been right about not quite enough magnification.
Here are a few photos that were the better of the rush job for comparison.
Photos on a full frame cannon, with 18-55mm wide open, reversed with one of those cheap extender sets, the $6 piece af pass through 65mm total, eBay special.
Bampa BP2ATC needles (Crosly flip upgrade)
D5100m AL-11 on a Stanton 500 2 that came with a table. This one was especially hard to focus on, also not translucent at all, looks like metal in camera. I think this demonstrates, in topic, the problem with a torus shaped focal plane well.
This came on a brunswick reproducer for diamond disks. I think it's shot. I know, not microgroove, but still fairly small.
Lastly a 78 phonograph ten for a penny needle, presumably used as it came on reproducer.
How do you like the billows? Can you adjust them by a thread for millimeter scale adjustments? Are they convenient for micro adjustments, or like lens reversers are they also only a next best thing to a good microscope? Formerly having access to a studio it seemed like I got to try nearly everything, even those lousy thread on magnifying glasses, but no billows, only rails.