I have a lot of love for the image quality of Nikon's 75-150mm
f/3.5 but the build quality leaves something to be desired. I'd heard
good things about this old lens, which was apparently made by Kiron (as
was the 75-150) but made in a two-ring version so zoom creep would not
be an issue as it is on almost all of the Series E 75-150mm lenses.
Build quality of this little lens is great. The lens is slightly
shorter than the Nikon 75-150mm, and about the same diameter, using
52mm filters. The lens comes complete with a nice built in lens hood,
something I miss on the Nikon. Focusing is smooth, as is zooming.
Unfortunately it didn't take me too long to find out that optically my
copy of the Vivitar 70-150mm f/3.8 is not on par with the Nikon, which
is a big shame because I like the build, lens hood, and close focusing
ability of the Vivitar.
All images were shot on a Sony NEX-5r, on a tripod with the electronic
first curtain shutter on and released with a remote, so no camera shake
is happening. Focused at 10x live view.