LOL well I could afford a couple without much of a problem I just cannot justify them especially I could get AF 35mm or 50mm 1.8 for 90-140£....

You have had to -6 your 40mm too Anvh?

I have to admit, reasonably fast primes are the one thing I miss moving over to Pentax. 35mm 1.8, 50 1.8, and 85 1.8 all readily available for very cheap to very reasonable prices. Even stuff like 105mm 1.8 does not cost a fortune. On the other hand to fall below the f2.4 barrier you gotta spend 500+ pounds on FA limiteds.

Of course I did not move over for the fast primes, I knew they did not exist and what exists does serve my very modest needs very very well but I wouldn't complain if I got my extra 1-2/3 stops faster. Having said that my 40mm pancake after having its focus adjusted (it is backfocusing a bit as I found out) is really very good even at 2.8.

Thanks for all your help John!

Live practically next door and was gonna go next weekend to give another go at the 8-16 so will ask about that. Might instead just drop during lunch time.

So you recon i shouldnt worry too much? What bothers me is if the camera body is causing it especially seen as it is the same amount for two rather different lenses.

Ok I will go there the weekend, the AF Adjust was off actually i put 6-7 to bring the 40mm to normal focusing, which is the amount required at the same distance and at 55mm for the 18-55

Yes I did and although less visible obviously it still does it. What I also noticed though is that it happens with the 18-55 as well..... Could it be the camera that needs alignment and not the lenses?

Would Pentax be happy to do that ? It might be the reason behind the softness on the 8-16 and the 10-24 as well though if it does it by the same amount give or take for 2 lenses already

ok yes sorry ff is it then ?

http://flickr.com/gp/74901137@N00/496f50

The focus point was on the R not the D/F... do you think it is backfocusing? Also even if it does not sure I want to use the auto fine tune cause it seems to not have that problem in closer distances. Thanls

And yes I know I need to clean my keyboard