Archived posting to the Leica Users Group, 2008/01/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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