Archived posting to the Leica Users Group, 2009/04/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]After responding I realised that Douglas may possibly be referring to fringing from (lateral?) chromatic aberration too, since he has mentioned aspherical correction. To the best of my knowledge that is not corrected by the camera firmware. There are options for that within Photoshop, naturally. 2009/4/25 Leonard Taupier <len-001 at verizon.net> > Douglas, > > An uncoded 21mm lens with a UV/IR filter will give you the color fringing > you describe. > > Len > > > On Apr 24, 2009, at 6:37 PM, Douglas Nygren wrote: > > I have been using a pre-Asph 21mm Elmarit on the M8 and notice on the edges >> a subtle shift to light blue. >> >> My assumption is that this may be caused by vignetting, but I may be >> wrong. Has anyone else noticed it. >> >> A friend suggested that having the lens coded for the M8 might cure this >> problem. Does anyone know whether that is true or not? >> >> My friend maintains that coding helps wide-angle lenses. True? >> >> I assume the Asph 21 does not have this problem, but that's an assumption. >> >> Your help is appreciated, as always. >> >> Doug >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Cheers Geoff 'Breathe In, Breathe Out, Move On' http://gallery.leica-users.org/v/gh/a/ http://www.pbase.com/hoppyman