300m Lens needed or over

the tamaron looked tempting till i read the above what happend to get it to stick and you having to strip it

Andrew might have been referring to an older Tamron 70-300 with a different design, I don't know. (Tamron have been making 70-300s for a long time).

Anyway it's unlikely that anything will go wrong with yours. I've not heard of any reliability problems previously. Apart from the zooming being a bit stiff, the build quality seems very good to me.

Sorry, I didn't mean to put you off. My broken Tamron 70-300 LD is... er, about 10 years old, and it spent most of that time on a shelf not being used. Even with a sticking iris/diaphragm it was still a good lense. In fact it was only when I turned to aperture priority mode that I noticed there was a problem. If it had been an f2.8 lense I might have noticed sooner.

Anyway, I've had no problem buying another Tamron, especially as the Tecno price is less than half the cost of my original lense. It's also a newer version so I don't think you can draw any reliability conclusions from my example.

Hope that helps undo the concerns I sowed. I look forward to receiving mine later today.

Andrew McP

My local Camera shop has one in he also has a SIGMA UC 100-300mm F4.5-6.7 which he say will walk the floor with the tamron i have always fancied a sigma lens and seeing how quick the go on eBay he wants £67 it came in with a faulty camera customer has never been back would the sigma be a better investment ??

F6.7 is very slow, AF is not specified to work with a lens that slow so although it probably will (hey, it's a Pentax) it will be less reliable than it might otherwise be

Baring in mind that this is coming from someone who hasn't used either, I'd take the Tamron over that Sigma any day of the week.

The good Sigma is the 70-300 APO, (and the 100-300 constant F4, but that's a £700 lens) the 100-300 F4.5-6.7 is their lowest of the low base model and I'd be surprised if it's any good.