I know what an APO lens is. If the problem, which is FRINGING, not CA, is not caused by CA, then getting an APO lens to minimize or eliminate CA, isnt going help the FRINGING problem at all. jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Digital Image Studio Sent: Saturday, April 14, 2007 12:46 PM To: Pentax-Discuss Mail List Subject: Re: Full frame lenses and the K10D, CA anyone? On 15/04/07, J. C. O'Connell <[EMAIL PROTECTED]> wrote: > FRINGING is not causeed by CA, so getting > an APO lens to eliminate CA is not going > to help the FRINGING problem. APO lenses are precisely designed to minimize longitudinal/axial chromatic aberrations, such a lens may still exhibit some lateral /transverse CA however this type of aberration is able to be remedied during RAW conversion as previously mentioned earlier in the thread. -- Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://home.swiftdsl.com.au/~distudio//publications/ Pentax user since 1986, PDMLer since 1998 -- PDML Pentax-Discuss Mail List [EMAIL PROTECTED] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [EMAIL PROTECTED] http://pdml.net/mailman/listinfo/pdml_pdml.net

