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
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|
