Reading the doom and gloom forum again Paul.n They tend to get pretty paranoid about the 16-50. They do like the 50-135 a lot
Dave Dave On Sun, Mar 22, 2009 at 12:46 PM, Paul Stenquist <[email protected]> wrote: > DA* 16-50 paranoia is upon us again. Since I use mine almost every day, I > figured I ought to show a sample of how it renders the most CA prone subject > possible: dark tree branches against a white sky. Yes, I know that no one in > their right mind shoots tree branches against white sky, but sometimes they > end up in frame, as they did here. Here's the entire frame: > http://photo.net/photodb/photo?photo_id=8817194 > > And here is a crop of the branches against the sky at 100%: > http://photo.net/photodb/photo?photo_id=8817201 > There's some glow around the street lamp. Don't know that I'd call it CA. > Speaking in purely technical terms and having examined it at a pixel level, > I think I would categorize it as "glow." > > Hair against sky can also be a problem. Some of my FA primes produce > considerable CA shooting digitally in these conditions. Here's Grace's hair > against the sky at 100%, cropped from the above frame: > > http://photo.net/photodb/photo?photo_id=8817198 > > Look at the horrible band of green atop her head!! Oh wait, that's a > headband. > > Seriously, the DA 16-50 s is probably the most CA-free (or perhaps second > best to the DA* 50-135) from among my twenty or so Pentax lenses. Two of the > worst offenders are the A400/5.6 and the esteemed K 85/1.8. That being said > I still use both of those lenses and consider them excellent, particularly > the latter. But I don't shoot branches with them:-). > > Paul > > > > > -- > 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. > -- Equine Photography www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ Ontario Canada -- 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.
