Amazing lens. You don't have nor need the lens correction features offered by the K-x. Macro lenses by design are sharp across, and have flat profiles.
I've used it on the K-x and K-7 and it handles very well with excellent AF, though the long focus throw can take some time if swinging from macro to portrait or if using LiveView, but that's the trade-off in all macro lenses (and tele-zooms as well).
The only downside to the lens is it is a bit plasticky. I've also tried the Pentax FA 100 macro WR and they are extremely close in IQ, but you pay more than 2x for the WR and the non-plastic feeling in the genuine Pentax. Not worth it to me. The Tamron's focus limiter is very handy and an oversight on the Pentax design (shame).
Portraits are awesome. f/2.8 is excellent, even better stopped down a bit. Portraits at f/4-5.6 are as good as they get. Bokeh is butter. Superior res, no vignetting, no CA or other dis, sharper than a new Gillette razor.
Samples (slightly cropped, for alignment, slight contrast increase):
Originally posted by srini Hi Guys,
I am planning to buy a 'Tamron AF 90mm f/2.8 Di SP A/M 1:1 Macro Lens for Pentax' to experiment my skills on Macro.
Though I have read the reviews in Amazon, I need you guys help to decide on this lens. Will the lens correction feature in K-x can be used on this lens?.
1) I have a pentax K-x. How good is the AF of this lens with my K-x body?. Has any one tried it?.
2) Have you guys found any problem with this lens or Do you have any good suggestions?.
3) With f2.8 it should do good for portraits. Has any one tried? and If yes How are the results?.
I always come to this Post seeking for the experts advice before I get any gear. I decided upon K-x/Battery/50mm SMC lens after the debate here.
So, need ur help on deciding this too.
-Srini