Congratulations on your enablement, Boris :) I have settled on getting the Sigma 17-50mm f/2.8 (with SDM or whatever) because I was quite happy with its cousin 17-70mm f/2.8-4.5 on my K100D and K10D.
Still, I seem to use only the primes lately. All my zooms (including the 50-135mm Star with dead SDM) remain sleeping. I always try to rationalize that a zoom will be handy when I shoot such an such... Not yet! I believe you will soon share with us your extended impressions with this particular lens... I especially wonder if it will make you miss a prime! Bulent --------------------------------------------------------------------- http://www.flickr.com/photos/bc_the_path/ http://photo.net/photodb/user?user_id=2226822 http://www.pentaxphotogallery.com/bulentcelasun 2011/10/4 Boris Liberman <[email protected]>: > Hi! > > Picked up the medium size (as opposed to little) bugger from the post office > today. Few immediate impressions: > > 1. Sorry, Paul (Stenquist), SDM is slower than screw-driven AF. It is > completely silent (as in no sound that I can hear) but it is slower and > under few tungsten lamps it did hunt a bit. > > 2. Double cam lens barrel sucks. Totally does not inspire any confidence. > > 3. 16 mm is wide in a way that I forgotten. This is good. > > 4. Albeit slower than screw driven, AF is accurate. No issues with infinity > or close focus. > > 5. Hood is solid, better than other hoods on other f2.8 zoom lenses I had or > have. > > 6. IQ is there. Fully open it is fully useable. > > A question. My sample has slightly uneven rotation of zoom ring whereas in > the middle (around 24-28 mm) it gets a bit harder to rotate. And when I > rotate it, it produces a strange sound, as if some kind of air is being > sucked or whatever. Am I right to assume that it has to do with WR mechanism > which makes this lens a bit more air tight than its non-WR counterparts? > > All in all - it was a good purchase. I plan to make this lens my work-horse. > > Boris > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
