On Jul 6, 2009, at 16:57 , Francis wrote:
Thanks Joseph for putting up your test shots. It looks like your
getting much better results with your 300 then me although it's a
bit hard hard to tell because your subject is fairly low contrast.
What is the Pentax FA mount you are using? That sounds vary cool if
it is what it sounds like it is.
Around 1990 Tamron made the SP 300 ƒ2.8 LD-[IF] available as an
autofocus lens for the Pentax K-AF2 mount. I don't know how many were
made, or for how long, but I suspect they were not great sellers.
Pentax purists wanted the Pentax FA* 300 ƒ2.8 (which cost almost twice
as much), and I imagine too few even noticed it was on the market.
Mine is 60EP, serial number 100024.
Is the consensus that it need to be repaired, or is just not that
hot of a lens?
Fix it if it needs fixing, as long as it's under $250 to do so. It
looks to me like an element or group is out of columation. Items in
front of and behind the plane of focus have CA, even in the center at
ƒ2.8. Yet in focus items, even off center, do not, it seems to me.
Joseph McAllister
[email protected]
I couldn't remember most of what I know today
if it weren't for others sharing their knowledge
of my past on the Internet. Thank you…
--
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.
