On close inspection of the image there appears to be very little if any colour fringing of the in focus image, suggesting that CA is not the culprit.
I used to get a little CA on images taken with a 'K' 300 f4 of Superbike racing in the UK, now completely abscent using a Sigma 300 f4 APO even with a 1.4x EX TC attached. John ---------- Original Message ----------- From: Paul Stenquist <[EMAIL PROTECTED]> To: [email protected] Sent: Mon, 3 Jan 2005 07:38:19 -0500 Subject: Re: PESO" New Year's Day Walkaround > The blue/yellow of the out of focus branches doesn't bother me. I'm > not sure if it can be avoided. Perhaps I'll try shooting those same > branches at the same time of day with my a 400/5.6. I doubt if the > squirrel will show up for a reshoot <g>. Paul On Jan 3, 2005, at > 12:21 AM, Rob Studdert wrote: > > > On 2 Jan 2005 at 21:19, Paul Stenquist wrote: > > > >> I'm not sure what we are talking about here. The out of focus branches > >> are rendered somewhat transparent and diffuse. That's just good bokeh > >> in my book. Shel reported purple fringe. I haven't seen it, although > >> there is some color in the background branches. > > > > Hi Paul, > > > > The quite visible blue/yellow shift around the rear branches was what > > I was > > referring to, it's quite distracting in what is an otherwise good > > shot. Bokeh > > wise I'm sure it would look OK in B&W but it doesn't cut the mustard > > for me in > > colour. > > > > Cheers, > > > > > > > > Rob Studdert > > HURSTVILLE AUSTRALIA > > Tel +61-2-9554-4110 > > UTC(GMT) +10 Hours > > [EMAIL PROTECTED] > > http://members.ozemail.com.au/~distudio/publications/ > > Pentax user since 1986, PDMLer since 1998 > > ------- End of Original Message -------
