Archived posting to the Leica Users Group, 2020/10/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks for your comments, Richard.? I have no Apo lenses, so I've never considered the Apo extenders, having no way of knowing whether or not they would work with the older lenses.? The newer post-processing software gives me reasonably useful images for my purposes.? As my eyes continue to age, even after surgery, I'm finding that AF lenses are much easier to use. On 10/19/20 8:19 PM, Richard Clompus via LUG wrote: > Jim, both images are clear but I prefer the one with the extension tubes. > I have the 2X R Apo extender that produces sharper images than the non-Apo > extender. The Apo is a lot more costly but it does provide additional > clarity and contrast compared to the non-Apo version. Most people > probably wouldn?t notice the difference if the image is sharpened a bit. > > Thanks for posting. > > Be well, > Richard > > Richard Clompus > California > >> On Oct 8, 2020, at 11:10 AM, Jim Nichols <jhnichols at lighttube.net> >> wrote: >> >> I've been using the Leica-R 60 macro lens for a few days and began >> wondering which gave the best results, adding the dedicated extension >> tube or the tube plus the Leica-R 2X Extender. So, I did a kitchen >> counter experiment. Using kitchen lights and a shiny dime, I first >> combined the dedicated extension tube with the 2X extender and mounted >> the assembly on an old Star-D tripod. I adjusted the height so that the >> image of the dime filled the height of the frame, and took several >> exposures. Here is the resulting image: >> >> http://www.gallery.leica-users.org/v/OldNick/20201008-DSCF2180.JPG.html >> >> I then removed the 2X Extender and mounted the lens and extension tube as >> it was intended to be used. I took several images of the dime, which now >> filled about half the height of the frame, and cropped the resulting >> image to match the first one: >> >> http://www.gallery.leica-users.org/v/OldNick/20201008-DSCF2192.JPG.html >> >> It is my opinion that the lens/tube combination is sharper without the 2X >> Extender, even with enlargement. I am ignoring differences in lighting >> with this setup. >> >> -- >> Jim Nichols >> Tullahoma, TN USA >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Jim Nichols Tullahoma, TN USA