--- Digital Image Studio <[EMAIL PROTECTED]> wrote: > On 14/04/07, Brendan MacRae > <[EMAIL PROTECTED]> wrote:
> It's endemic with most lenses, digital sensors just > tend to exacerbate > the problem, different coatings would make little > difference as the > source is lens aberrations. Fortunately CA is also > easy to manage when > post processing RAW images. Except that in my experience so far, ACR doesn't handle CA worth a crap. The built in "fix" in the lens tab seems a joke to me...it simply doesn't work. I have also tried many other fixes in Photoshop all with little effect. It's frustrating but I guess I'll keep looking. So much for taking pictures, all I seem to do is spend my time correcting them. > A FF sensor would likely make the CA more apparent > as the angle of > incidence would be more acute towards the edges and > the lenses will > exhibit more distortion towards the edges. In other words, you'd find worse CA at the corners since a FF sensor is using the entire image circle instead of the so called, "sweet spot" utilized by the smaller sensors? Wonderful...<pouring a glass of scotch> > Don't hope too much, the DA lenses seem to be all > over the place some, > exhibit slightly better CA, some worse than their > rough A/FA > counterparts. > Criminey! This is driving me nuts...<taking a nip> Thanks for your input, Rob. -Brendan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List [EMAIL PROTECTED] http://pdml.net/mailman/listinfo/pdml_pdml.net
