Yes, purple (and cyan) fringing seems to be native to digital photography. Can't recall ever seeing it on film. I believe it's a form of chromatic aberration, but PhotoShop tools designed to correct CA won't fix it. I generally select it and replace the color to eliminate it. Some lenses, particularly those designed for 35mm film cameras seem more prone to it. The new DA and DA* lenses seem to be immune. Paul
On Jan 1, 2011, at 11:31 AM, willdo-1 wrote: > I'm a little confused about "purple fringing". I have always understood this > to be the result of chromatic aberration from inadequately corrected optics. > From what I read here it seems that some sensors display the fault more > readily than others? > > D > > Dr E D F Williams > 41660 TOIVAKKA > Finland > Ph: +358(0)400706616 > > On 01/01/2011 18:16, Paul Stenquist wrote: >> Thanks Steve. It's good for shooting models with big noses:-). You know, >> foreshortening. Of course Gracie has an itty bitty nose. >> Paul >> On Jan 1, 2011, at 10:51 AM, Steven Desjardins wrote: >> >>> What a wonderful picture. (Now I have to get 400 portrait lens) >>> >>> On Sat, Jan 1, 2011 at 8:47 AM, Toine<[email protected]> wrote: >>>> Great portrait! >>>> >>>>> From other A400 and K5 samples I think I have seen reduced purple >>>> fringing. Did you notice reduced purple fringing on the K5. My A400 is >>>> very sharp but PF is sometimes hard to control on a K20. >>>> >>>> Toine >>>> >>>> PS All the best for 2011 to everyone >>>> >>>> On 1 January 2011 00:51, paul stenquist<[email protected]> wrote: >>>>> When Grace and I were out shooting birds and squirrels at the nature >>>>> center, I told her to walk away. When she was about 50 feet distant, I >>>>> shot her at f8, 1/1000th, ISO 1600. >>>>> No problem blurring the background:-). >>>>> >>>>> http://photo.net/photodb/photo?photo_id=12173039&size=lg >>>>> -- >>>>> 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. >>>>> >>>> >>>> -- >>>> 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. >>>> >>> >>> >>> >>> -- >>> Steve Desjardins >>> >>> -- >>> 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. >> >> > > -- > 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. -- 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.
