Sigma 120-400mm HSM non OS
Pentax K5ii / Tammy 17-50 / Pentax-F 50 1.7 / Siggy 70-300 / Siggy 150-500 / and my favourite Pentax-A 70-210.


I must get around to creating some kind of lens slush fund....
Born again photographer! Pentax K-30 & kit lenses. Just what do all these buttons do......?
greypoint
Member
The lens has worked perfectly on my K-30 and before that on a K20D. There seems to be some sort of compatability problem with my K5-lls [firmware??] the lens will sometimes not lock focus. This is apparent as soon as the lens is mounted. Take it off and on a few times, clean contacts several times and it then works. Once it's working it stays working. Unsure if this is something to do with the latest Pentax af system or just my camera being it's usual quirky self! When fitted to my K-30 it worked all the time, first time, as it should.These are some crops from a few quick shots taken with the K-5lls this morning in both dull and sunny weather.
some more - using K-30 and K-5lls here
http://www.flickr.com/photos/greypoint/sets/72157634255422856/
Looking for offers - the lens is in perfect working order apart from my problem with the K-5lls - I had zero problems using it on my K-30. Postage will be around £25 special delivery. PM if interested.