It's a done deal.

I hope nobody minds me hopping into this thread, but I have a freebie for anyone that NEEDS it (I hope nobody would claim anything & sell them on !)

One Sigma 77mm UV filter (latest DG version) - no box I'm afraid, but yours for the price of a Jiffy bag & a couple of stamps.

Bob

I have a Tamron adaptall 2 90mm f2.5 (model 52b) with matched Tamron 1:1 tube to offer you before it goes the way of fleabay.

LINK TO ADAPTALL SITE WITH INFO

The lens is in very good condition, just some minor paint wear on front edge & the rubber focus grip & aperture ring grip both have expanded slightly so that they slightly overlaps the shoulder of the groove they sit in (both perfectly functional, just doesn't look 100% perfect that's all)
Aperture ring working freely with positive clicks, aperture itself oil & dirt free & stopping down snappily.
Glass is damage free, no fungus, there is some light dust inside which is common of lenses of this age, I've honestly seen alot worse in much newer lenses.

The matched adapter is mint apart from some tiny paint loss of the matt paint on the adaptall mount.

I have the front lens cap, but no adaptall rear cap I'm afraid, I can supply a Nikon Ai adapter for it but no Pentax one I'm afraid so you'd need one already or source one to use this lens.

I'll include a 49mm Hoya Circular Polariser, plus a 49mm Hoya +1 close-up filter.

I can supply photos later this evening if there's any interest.

First reasonable offer by PM will secure the lens.

Thanks for looking, Bob

A tube should be "fit for purpose" also, but may be seen as a consumable I'm afraid.

Has the tube blown perhaps ? I know it shouldn't after light use but it could be the issue, try swopping a tube from another head into it.

Bob

I don't think that even Sigmas HSM lenses AF on their 1.4x or 2.0x TC when mounted on Pentax. It may be something to do with how the TC is identified by the camera perhaps ?

Ahh, makes sense, I'd forgotten about the Sigma teleconverter issue on Pentax mount.

Given up on the prospect of a K mount 150mm then Mike ?

Aiki, I hope you don't mind but here's my edit. As I suggested, I've lost the trees on the left but this gave an uneven composition too, so as it happens I've also cropped the right as alun suggested.

A touch of contrast & white neutralised but I fear I have lost the atmosphere of the original.

[IMG]http://i134.photobucket.com/albums/q105/RR76/aiki1.jpg[/IMG]

A bit too strong for me Mike. It really is difficult trying to restrain yourself when tonemapping isn't it ? I usually overcook the sliders somewhat.