Dear Trumpyman:
The PIPE Here, from New England USA...and since my Pentax rebate
should be on its way to me (hopefully, arriving by Sept. 21) I expect to be getting one of these lenses myself, very soon, for future use in aviation (RC model and fullscale) "action" photography with my K100D.
Just a few questions for you...
1: Is your lens the "silver" finish one I've seen online in a couple of places, or is it one of the "black finish" ones? Someone here in another thread advised me to "steer clear" of the black finish ones, as they SEEM to have had problems in working well with Pentax SLR digital camera bodies (something about what "Chickenhawk" here at the Pentax Forum, at his post at
https://www.pentaxforums.com/forums/83869-post22.html , said as follows, late this past summer in a reply to a post I wrote in)...
"There is one thing to watch with these [FA 80-320 zoom] lenses. Some of them suffer an internal fault where they work on film cameras but will not work on digitals. Many of them were factory rebuilt to correct this, but I am sure a few have slipped through the cracks. This is one lens - new or used - that you NEED to test on your camera before buying it, or have the ability to return it for a full refund if it doesn't work. I have never heard of this fault on a silver version of the lens, but I have seen many such faults on the black version. (The lens will not read or operate the aperture setting correctly on digital bodies.)"
Needless to say, any online place that I intend to get it from will HAVE to have some sort of ability to do this for me (to accept the return of a possibly "aperture-challenged" FA 80-320mm lens), or I wouldn't get it from "them"...!!!
2: How's the focus sharpness at the far end of the zoom range, especially for things in motion, that you HAVE to "pan" (like vehicles in motion, winged or not) to get a good clear shot? I AM willing to try my K100D with this lens at ISO 400 for more flexibility in shooting with that f/5.6 max aperture at the 320mm end of things, but I'd just like to get your opinion on this, where you've already got one.
Hope to get an answer soon...
Yours Sincerely,
The PIPE!