It's commonly called a PKA mount. It will basically take any Pentax SLR lens you throw at it, although the really old screw threads (M42 lenses) will need an adaptor. It will take autofocus lenses although obviously it won't autofocus.

What lenses do you have for it, and what do you need? I see a Tamron zoom and the Pentax 28-80mm in the photo above, but what's that other lens?

For landscape, what about something like this: link

There are a lot of cheaper non-Pentax 24mm's too, best of which is probably the Sigma 24mm f2.8. They'll all work on your future Pentax DSLR

Hehe, the Welsh are famous for their hospitality but that's a bit too far!

Well I hope SRS can get one to hire out, cos that's way too expensive, but hiring may make sense. However I can see why you'd want to use your k5 if you have a passion for underwater photography. A couple of metres down and it's already a lot darker than the surface.

I can't remember how highly ranked the 43 ltd here, but it looks it's noticably more popular on the other forum. I wonder why? Interesting stuff.

Well he bought a lens off me - under a different ebay account, but it wasn't hard to work out that it was the same guy as emiliaarts - for over the odds once. Which was nice. I think it was an M 50mm f2 which he paid 35.00 for!

He probably then tried to sell it for fifty.

There's no need to throw up this great distinction between pro and personal work. Although I imagine plenty of photographers give their families the full 'pro' treatment!

Fortunately I expect nothing I do in photography to translate into paying work. 'Just as well' I hear you say!

I don't understand how this has any bearing on this discussion!

What a sky! I think no. 3 is my favourite, I think the quarry is an interesting part of the landscape to include. I don't think the foreground rocks are quite interesting enough in no.1, and present a sort of barrier in no.2.

A superb place. I remember going down Vortigern's Valley as a kid. The atmosphere of the place is really special.

You don't have to post your professional work, though. You must take some nice shots of your boy, family, friends, which are in a similar vein to your commercial work? Or perhaps you hang up the camera at the end of the working day and do something entirely different for a hobby... beekeeping, or cagefighting perhaps?

With Facebook etc, I think that particular ship has sailed!

Don, maybe you should post some of your best work more often - seeing very successful shots is sonmetimes even more instructive - inspiring - than having your own work deconstructed in my opinion. You may not need to hear the praise, but that's not what it's about - people will benefit in a 'soft' way from viewing the work and the comments, and discussion of how it was taken.

Also, you may view the work as 'your best stuff' but what if you are overlooking something? Could a comment not come from a fresh angle and help you reassess the way you are doing things?

And, of course, there's nothing wrong with sharing your successes with your forum buddies. It's nothing to be ashamed of.

No I noticed it too but couldn't work out if it was PF or just the harshness of the light in the reflections... but that was partly why I suggested a mono conversion.