That's the one, although I'm sure I've seen them much cheaper,

If you want something "cheap" for shooting birds (pun intended) you could try the old FA 80-320 (the later silver model is better than the black one)

I got some great shots using mine on APS bodies (you'd have to crop to get the same magnification I did)
The lens is terrible at grabbing focus and hunts like hell but the shots can be worth it.

I had seen the link Steve, unfortunately the DA*50-135 isn't on there, athough given the quality of the lens on APS I doubt that would be an issue.

Wasn't aware of that, will have to keep an eye out for one.

Thanks guys, I was considering keeping my 50-135 DA* rather than buying a third party adaptor and having to search for suitable lenses with an aperture ring.

Now all I have to do is find a genuine Pentax adaptor.

I'd appreciate some input on the pro's and cons of the genuine and third party adaptors.

I'm assuming the genuine adaptor allows use of lenses without an aperture ring and the third party one doesn't.

Also is there a great difference between been able to use the iris on the lens as opposed to the electronic shutter and what effect will it have on battery life and operating speed assuming it has to work harder to stop down a much larger mechanism compared to the tiny Q lenses.

I'll second that

This thread has been running over 10 years, does it qualify for the guinness book of records

As a matter of interest. how long do you leave freshly chopped trees before you can burn them? I took some conifers down earlier this year and was wondering whether or not to take them to the tip or save them for log burners.

It's yours, PM on it's way.