Tamron 70-350mm zoom question

Hi Folks:
I have the opportunity to pick up a Tamron 70-350 f4.5 zoom in excellent condition with an Adaptall 2 PK/A mount. It's a big heavy lens that needs to be mounted on a tripod. I haven't been able to find any info on this lens on the internet, except that I believe it is an SP lens. I am hoping that someone can answer a question or two about it.
Is it a good quality lens? Any opinions ? Will the PK/A mount work on an older ME Super and K-1000?

Thanks for any input,
Ron

Hello Ron,

The only 70-350 f4.5 that I know about is model 05A and I'm afraid it is not an SP lens.
Don't let this put you off though, Tamron simply do not make a bad lens and if you're happy with the size/weight and price, then go for it - it'll work just fine with your cameras!

A few specs:

70-350mm (5x zoom ratio)
f/4.5-32, AE
Angle of view 34~7 degrees
Lens construction 15 elements in 13 groups
Min. focus from film plane 98.4" (2.5m)
Filter size 82mm
Diam. 3.5" (90mm)
Length @ infinity 10.8" (274mm)
Weight 76.5oz (2170gm)
Built-in retractable lens hood

Accessories - supplied with tripod mount ring
accepts SP 2x tele-converter

Hope that helps, and that I've got the right model

Thank you very much Kimbo. I appreciate your help. I went ahead and bought the lens. It does seeem to be very well made and in like new condition. I look forward to shooting some wildlife photos.

Thanks again
Ron

You're welcome Ron, was I right with the model number?

Kimbo-
The specs you list are correct. I don't see a model number on the lens. Where would the model number be?
Thanks,
Ron

Ron,
The lenses I have, have the model number stamped on or near to the aperture ring. Unfortunately, I can't see the number on the picture I have of the 70-350 but above the aperture window there is TAMRON, the zoom ratio and focal length range to the left and TELE ZOOM, BBAR MC and what looks like the filter diameter and angle of view range to the right.
In case you hadn't worked it out, BBAR MC stands for Broad-Band Anti-Reflection Multi-Layer Coating (7 layers), Tamron's equivalent to Pentax's SMC and is the same treatment as applied to the SP range.

I really hope you're pleased with the lens, I'm sure you won't be disappointed.