If you bought the lens for astrophotography, why are you testing it on close-ups of flowers? Why shoot hand held if you're testing the lens?
Shel > [Original Message] > From: Walter Hamler > I recently procured an old screw mount Pentax 300mm f/4 manual > lens to use for Astrophotography. Here is a test shot taken with the > lens. This is hand held, f/5.6, about 1/350 sec. > > http://img.photobucket.com/albums/v699/newtmaker/Flowers.jpg

