I have a Sigma 300 F4, and the Sigma 1.4 converter. Sometimes the AF works and sometimes it does not. I have different stories from the net and Sigma of its AF powers on this and some other lenses.
You might want to look into that. I find it hunts alot with the tele on and images softer than i expected. Dave On Sat, May 23, 2009 at 5:55 AM, John Whittingham <jo...@carmel.ac.uk> wrote: > I have the original 70-200/2.8 non-Macro, non-HSM. I'm very happy with the > image quality even with the 1.4 EX converter fitted. The build quality is > very good but not dust and moisture sealed, it's a heavy well made piece of > kit. Thibouille is correct in stating that the converters do not work with > HSM/SDM, something that Sigma need to fix IMHO. Some Teleplus, Kenko and > Tamron converters do allow HSM/SDM. > > Regards, > > John > ________________________________________ > From: pdml-boun...@pdml.net [pdml-boun...@pdml.net] On Behalf Of > 27...@comcast.net [27...@comcast.net] > Sent: 23 May 2009 04:27 > To: pdml@pdml.net > Subject: Sigma 70-200mm f/2.8 DG HSM II Macro Zoom Lens > > Does anyone on the list have this lens. I am thinking of buying it, but I > thought I would ask if anyone has thoughts about it. You can also get a 1.4 > adapter for it which would make it a F4.0..I know Paul does not have it as I > spoke to him on the phone a couple of days ago. He said as you all know he > likes the new Pentax 60-250 F4.0 lens. I do like the extra stop (2.8)on the > Sigma..Thanks Joe > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- Documenting Life in Rural Ontario. www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ York Region, Ontario, Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
