Well, all my other lenses seem to focus correctly and the camera locks perfectly.

My 50-200 seems to back focus a fair bit. Secondly, it is supposed to keep in focus thought the zoom range. Mine changes focus quite a lot as I zoom which indicates there is something wrong with the lens. It is supposed to be a fixed focus once attained thought the zoom range.

My other lenses show varying amount of minor front or back focus, normal error I'd expect from manual focus or from the autofocus. It has two contrast points it can choose to lock focus above and below the line so I'd expect some minor variation. They are generally quite consistent though.

Ok, so what next... Seem to have established it is the lens. Especially as it failed to lock focus at all at infinity out and about a couple of days ago.

https://www.pentaxuser.com/forum/viewtopic.php?t=5182

Advice, help, suggestions...

I think it needs to go back to Pentax but then I'll be without my telephoto lens

Just got the test chart as I've noticed some back focusing problems with my DA 50-200 and A50.

Part of the reason I downloaded the manual for the K10 two weeks before I bought it. Read it a few times to make sure I knew as much of it as possible so I wouldn't need to pick it up again when the camera arrived. Worked quite well really...

Where is that bridge? I want one!

Next meeting, next meeting... Hopefully the weather will be just as good as the last.

Very poor depth rating on that one. Ned Bunnell (of Pentax USA Marketing) linked a housing on his blog some time ago.

http://nedbunnell.blogspot.com/2007/01/k10d-waterhousing.html

http://www.pbase.com/mark_dominic/pentax_and_spl

Seems to be the same one.

More so now

Perhaps it was just seeing Homer dressed as he is next to him

Erm, actually Homo Sapien. Problem arrises because there are a very large number of sub divisions none of which are very clear. Almost very new skeleton is given a different name but, that is all it is; a name.

Wasn't quite sure where to put this so I stuck it here.

Just waiting for my photos to upload and I'll link them in... ... ... *long wait*

I think everyone enjoyed it

I'm not posting all of them as that is a waste of time (and bandwidth), just a sample group and the rest are in my picasa album. I have the colour pictures as well as B&W as some of you may not like B&W (where I have converted to B&W).

Saltaire Church
PENTAX K10D
ISO 100
1/500 sec
f/5.6
18mm
DA 18-55f3.5-5.6


I really like how it has been dramatically 'enlarged' be the wide angle distortion. The sky and colours I'm very pleased with.

The Door to Number Twelve
PENTAX K10D
ISO 100
1/125 sec
f/5.6
50mm
DA 50-200f4-5.6


Very difficult to get the door detail in the shadow. Tried waiting for some shade but magically all the clouds dissappeared as soon as I needed them (damnable English weather).

I'm tempted to up the saturation just a little to put more emphasis on the door and also improve the vegetation.

Memory Lane
PENTAX K10D
ISO 100
1/250 sec
f/8.0
50mm
DA 50-200f4-5.6


Nothing special really but turned out well.

Now you've got to wait for the other's photos.

(Culled just under half of my photos, most of which were duplicates)(dinner time)

Oh dear...

Very nice photo opportunity though, now just turn it up side down