From what I've seen the Tamron is only marginal sharper over the whole range but Pentax has the highest peek and has nicer colours... we can probably going like that forever since there is little in between them but they will handle differently.

MF is so good as the same for both, besides that one has quickshift and the other has an easy switch system in the focus ring.

Ken said Merchant City Cameras is in Glasgow, just try them both out if they have them. You can also try the Tamron on a Nikon mount it's the same lens and pick the one that feels and handles the best for you.
If they don't have the Pentax the Tokina is very much like that one, it would at least give you a good idea how it would be.

Golfdiesel, which mode gave the most constance results?

Chris he is also a new member

They look good, you can probably get a bit more details out if you sharpen them a bit.

I prefer colour as well, the contrast of the stone of statue is to hard with the B&W in my eyes.
I'm still thinking if I like it or not...
Would have loved to see a bit more focus.

Very nice!
Even through the fence they look good and that reminds me that I've still 300 unprocessed race photos on my computer

Thank you Dan, 10mm is pretty wide so it will probably be not so much as you think.
I believe the advice was 1/3th overlap so with 100 degrees will give you around the 30 degrees per shot so it takes 12 photos to go around, they probably needed to do that 3 times so probably around the 36 to 40 shots.

Not as much as you thought right?

Wow Antarctica, have a wonderful trip!

NO I'm sorry... I saw the text recently added photos and a number of 1397 so I was like you must have giving me the wrong link but I just see your photo opens nicely

It's better to link to your gallery, simply click on your name an you will get there.
link

It's a wonderful photo very sharp and powerful, even the composition is good

Yes flash based sites are a problem, I don't know a way to get them off from there... well I can but there is no way to hot link to flash site so far as I know.