Very nice catch. I don't think the mirror lenses work with autofocus. You need a split screen mirror or to use the ground glass. Regards, Bob S.
On Tue, Apr 22, 2014 at 11:23 AM, P.J. Alling <[email protected]> wrote: > I believe this is the same Cardinal from "The Victor!", having chased off > his rival. He moved to a different tree. I shot this with my Vivitar Solid > Cat. 600mm f8.0 hand held at 1/800 sec. It's pretty respectable for a > Mirror Telephoto, the only really noticeable ring Bokeh, visible is from a > branch quite a bit in front of the bird. While this is a pretty heavy lens, > it weighs more than the camera, (though not by much), it seems to be quite > hand holdable with the K-5II. This image is a crop of a bit under 1/3 of > the frame. I could probably make a decent 8x10 inch print from this file, > thought the branches in front of the bird mean I probably won't. > > A couple of other observations, I really need a split image focusing screen > for manual focus, The K-5II thought something was in focus but the sharpest > object in the frame was the small branch just in front of the bird. I don't > know if it's from subject movement or being just a bit out of the limited > DOF from this lens, but the Birds head and eye are not quite sharp enough in > the full resolution file, though his breast feathers seem to be. The K-5II > files can take a lot of abuse before they begin to fall apart. > > I always thought that the Series 1 Solid Cats were multi coated, but I > noticed that there doesn't seem to be any of the usual coating reflections > you see even with single and double coated lenses, and no mention of > Vivitar's vmc coating on the lens. Anybody have any information on that? > > Well onto the photo. > > https://dl.dropboxusercontent.com/u/1604247/PESO/PESO%20--%20theVictorII.html > > Pentax K5II w/Vivitar Series 1 600mm f8.0 Solid Catadioptric Lens. > > As usual comments are welcome but may be totally ignored. > > -- > A newspaper is a device for making the ignorant more ignorant, and the > crazy, crazier. > > - H.L.Mencken > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
