Archived posting to the Leica Users Group, 2008/01/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Fringing I think Douglas Sharp is an expert on software that helps to get rid of unwanted artefacts - Douglas, help !! phx wildlightphoto@earthlink.net wrote: >Leonard Taupier <len-1@comcast.net> wrote: > > > >>I think the cyan is CA. I see it very frequently on out of focus >>branch edges against a high contrast sky. It doesn't seem to matter >>which camera makes or lenses. It's most visible on very large >>enlargements which this is. >> >>Thanks for looking and for your comments, >>Len >> >> >>On Jan 23, 2008, at 4:38 PM, Lottermoser George wrote: >> >> >> >>>Nice "pose" >>>strange cyan edges on things? >>> >>>On Jan 23, 2008, at 3:28 PM, Leonard Taupier wrote: >>> >>> >>> >>>><http://gallery.leica-users.org/v/LeonardT/Birds/255L0986_Hawk.jpg.html> >>>> >>>>http://tinyurl.com/327ne2 >>>> >>>> > >Len, I won't be able to look at your photo until this evening but given the >mega-multi-element optical system (zoom plus extender) the cyan fringe >might also be flare. It would be interesting to see if this effect can be >duplicated with an f/6.8 Telyt, which has only two air/glass surfaces. > > >I don't see it in this photo (SL/560 Telyt/K200) > >http://wildlightphoto.com/birds/accipitridae/rtha01.jpg > >but then this picture isn't enlarged/cropped much. > >Doug Herr >Birdman of Sacramento >http://www.wildlightphoto.com > > >-------------------------------------------------------------------- >mail2web.com - Enhanced email for the mobile individual based on Microsoft? >Exchange - http://link.mail2web.com/Personal/EnhancedEmail > > > > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information > > >