Hello Frits, Yes, it acts just like a regular DA lens on the *istD. So you can AF and touch up afterwards.
-- Bruce Wednesday, August 8, 2007, 1:33:12 AM, you wrote: FW> Does the lens auto focus on a *istD? If it doesn't have the old clutch, I FW> assume it only can AF on the K10D and K110D and K100D? FW> Op Wo, 8 augustus, 2007 03:55, schreef Bruce Dayton: >> First report: >> This will mostly be in comparison to the DA 16-45/4 - which I have and >> use quite extensively. >> >> It appears, at least for this lens, that Pentax has a new lens cap >> designed a bit more like the Tamron caps where there are inner grips >> to squeeze. It is more rounded than the Tamron and looks very nice. >> It is an improvement over the standard cap I am used to on Pentax >> lenses. >> >> The 16-45 zoom mechanism is unusual in that as the lens extends, the >> focal length shortens - rather opposite of what you would expect. The >> DA *16-50 is the opposite - as the lens extends, so does the focal >> length. >> >> The fit and finish are improved and it handles much more like an FA * >> lens. It doesn't use the old clutch system, but the focus manually is >> very similar in that it doesn't turn during AF and you can turn the >> focus ring past the ends of proper focus - those of you who have use >> FA* lenses will know what I mean. >> >> It is a bit larger lens than the 16-45 and a bit heavier. The hood >> seems to be built to have more use - my 16-45 hood is wearing off the >> small detent that locks it in place. The DA*16-50 is much beefier. >> But it is not anything like the FA*85 or FA*200 hoods. >> >> I took both lenses and wandered around outside my house and took some >> quick shots using AF-S and AV priority. The SDM is very quiet- not >> absolutely soundless, though. If it is very quiet, you can hear it >> settle/lock focus. Tons quieter than the old system, though. >> >> My impression was that the DA* lens seemed to focus slightly more >> accurately than the DA 16-45. It also seemed a bit faster, but not >> obviously. I didn't really try it on moving targets. >> >> The exposures seemed slightly different between the two lenses - the >> DA* was slightly darker/richer - could be contrast or could be >> exposure - haven't delved deep into that yet. The few blowups that I >> looked at - from Breezebrowser quick conversions (no adjustments), the >> DA* seems a bit sharper than the 16-45. >> >> Some first impressions - I'll try to write more when I have something >> to say. >> >> -- >> Bruce >> >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> FW> -- FW> Frits Wüthrich -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
