I wouldn't live with it if it's faulty after such a short time. Take it back to the shop and don't leave until it has been replaced.

Using ANY and ALL lenses set to a manual F stop (not 'A') on Pentax DSLR's imposes restrictions (This includes A, F, and FA series lenses and applies equally to older lenses having no 'A' setting). This does not apply to FAJ or DA series lenses because they have no aperture ring.

You can only use stopped down metering and DOF preview in M (manual), B (Bulb), and X (flash synch mode on K10D) modes.

In addition, you must set the relevant custom menu option for your camera model to allow use of the aperture ring.

I think that lamppost looks really cool, can't we lose the church?

. . . and the piece of litter in the middle of the road . . .

I'd say you were on the right track. Good luck with it.

I agreee with you, the f16 shot looks best on my monitor.

Yes it works now, bit it's soooooo sloooowwww.

Link doesn't work for me.

My own opinion is that there are working alternatives in the form of radio/IR slave triggers available at reasonable cost. There is no need at present to elevate the cost of camera bodies and flash units even further by adding functionality that most users will not need or use.

Yes, very probably.