Others tend to notice it before I do, like on this shot:

https://www.pentaxuser.com/photo/user-5416/snowdon-spat-15377

Perhaps it's a bit like sensor stains - it's there if you look for it!

I continued to use the K10D until I got my K5 but was a bit put off picking it up again after the JPS tech said it was an issue with some units.

However I did take this shot earlier this year with the K10D and had it published in a railway magazine. The train was running at ~90mph at the time.

https://www.pentaxuser.com/photo/bittern-blowing-off-64445/large

I can't remember if I levelled it in Photoshop, which is ok for the occasional shot.

My K10D has a "tilted viewfinder", borne out by one or two comments on my gallery pics. Either that or I have one leg shorter than the other!

I called in at Johnson's last year when I had a problem with one of my lenses and one of the technicians briefly checked out the K10D. He mentioned a masking plate in the viewfinder that was misaligned and the repair and service cost IIRC was circa £140. It was a recognised issue with some K10s apparently.

What infuriates me is that so many people were saying 'how blooming marvellous' the K5 was when it came out, re: focussing issues and now there are plenty above slagging it off.

I still have to work in a certain way (pre-focus on a trajectory) with moving subjects and can't help but wonder if Canon or Nikon for instance, would be more sure-footed and suited to my needs. Lack of focus can not be compensated for by lovely ergonomics.

I think that the FA50 is the best performer of all my lenses on the Mk1 K5. It is the only one with no AF fine adjustment.

He asks, on the 1081st page of "Another pointless thread".

But do you think that JR is teasing us?

I sympathize with Gareth's analysis if not exactly how it was expressed.

I remember a pic by John Riley prior to a shoot, with a model hanging upside down from a horizontal bar. I didn't get the point then and I don't particularly appreciate these shots, agreeing in part with Gareth. John, are you engaging in a bit of 'trolling'?

Sorry but I don't agree with Gareth using 'would of' instead of 'would have' - it is internet laziness and a pet hate of mine.

I have a 'lock-up' with my K5 at regular intervals, usually when in continuous shooting mode.

This happened several times with the Pentax battery even before I bought an Energizer spare.

The lock-up happens with both.

I had hoped that subsequent firmware releases might cure this but it is still happening (last time 3 weeks ago when out shooting for the day, F/W V1.14).

To far away for me, but will probably go to the Great Central at Loughborough, where ex GWR No.6023 'King Edward II' will be having a run-out (disguised as No.6015 Richard III).

When we discussed AF adjustment before, someone agreed with my supposition that the adjustment was like adding a shim (or even an imaginary negative shim) between the lens and body to adjust the focus (lens focal point) to sensor distance.

If there is the possibility of something working loose around the mount on the body, isn't it possible that the focus to sensor distance will change and won't this be progressive with increasing number of lens changes??

Such a change to the body would affect all lenses as David has described.

One could try tightening all the screws around the mount but only if you are prepared to recalibrate all your lenses.