On Mar 20, 2011, at 5:52 AM, Boris Liberman wrote: > On 3/20/2011 2:48 PM, Larry Colen wrote: >> I'm very intrigued by the 28-75 myself, it's a range that I find >> myself needing a lot. How sharp is it? My two zooms are the 18-250 >> and the 16-50, how would it compare with them? > > My copy is very sharp. Easily as sharp as Pentax primes, such as 35/2.8 or > 50/1.7 or whatever non-limited primes that I (used to have) had. I think that > limited lenses outdo it a bit in other aspects of the rendering, but for all > practical purposes I treat(ed) my copy as set of primes in one barrel. My > only issue with this lens is like I wrote just a moment ago to Tim - somewhat > nervous OOF rendering. Not always, mind you, just sometimes, but I hadn't > manage to learn when it decides to go nervous.
Interesting. That is my biggest complaint with my bigma, that I don't like the bokeh. Until my finances settle a bit, or I've got a big chunk of income depending on a good zoom in that range, the situation is pretty well moot. But, it's fun to think about. Photographing aikido, I find myself often needing a bit more length than my 16-50 will provide, but often need wider than 50. On the K-x I'm pushing the sensor hard enough to get the 1/80th or faster shutter speeds, at least at night, that I lose noticeable sharpness when I crop to zoom. I find that I prefer photographing musicians framed in close on their face. My 77 is usually pretty good for that, but there are a lot of times it would be nice to go a bit wider, and occasionally, I'd like a bit longer. Either the 28-75 or the 50-135 would be a good range for me to use in band photography, though the backgrounds can be a lot harder to control at a dive bar, so good bokeh is probably a lot more critical. I could probably use a lens as slow as 3.5 or 4, but wouldn't want to go much slower than that. At this point, I might as well consider using the 16-50 on one K-5, and buying a second K-5 and 50-135 to get the range I need, or ask what zooms work well on the 645D, because it's not like I can afford those either. -- Larry Colen l...@red4est.com sent from i4est -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
