On 11-02-07 1:45 PM, Larry Colen wrote: > On Feb 7, 2011, at 10:20 AM, Bruce Walker wrote: > >> On 11-02-07 1:12 PM, Larry Colen wrote:
>> Have you tried AF-C? > No I haven't. I probably should. > >> With moving objects I'd never try to use focus lock, myself. I'd just >> turn off AF altogether. > They aren't really moving that much, sometimes not at all. > I almost always have it on AF-C while shooting people dancing, even during the slowest dances. I also make sure that the shutter speed is sufficiently high, as even with the flash, the motion blur can affect the sharpness. (You can see that blur in this photo that I recently showed here: http://www.komkon.org/~igor/PHOTOS/Mixed-2011/_IR25429.jpg ) Also, albeit very subjectively (i.e. without quantitative and systematic tests), I found that 17-70/4 tends to produce somewhat sharper images of the dancers than 16-50/2.8 even at f/4 or f/5.6. The only way I can explain this is by different quality (or speed?) of focusing. I've been puzzled by that myself, and that why I chose to keep 17-70/4 last year. Igor -- 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.
