I have the Sigma 100-300/4 and the Sigma 1.4X EX combination. It is quite good. The lens is very nice and works well with the converter.
This entire gallery was shot with that combination: http://www.daytonphoto.com/Galleries/Blue%20Angels/index.htm I have used the Kenko 1.5 SHX and the Tamron 1.4 AF converters and they are not as good as the Sigma. -- Bruce Tuesday, January 30, 2007, 7:17:36 AM, you wrote: PG> Talking of T/Cs I've been debating whether to wait for the 60 - 250 or PG> get the sigma 70-200 f/2.8 + 1.4x TC combo or possibly the 100-300 f/4 PG> + 1.4x TC PG> I know that the 70-200 f/2.8 enjoys a good reputation but i know PG> nothing about their t/c... Any opinions on the combination ? PG> What about the 100-300 f/4 + 1.4 t/c ? PG> Regards PG> Patrick PG> On 1/30/07, Jan van Wijk <[EMAIL PROTECTED]> wrote: >> On Tue, 30 Jan 2007 06:21:48 -0800 (PST), Jack Davis wrote: >> >> >Am hankering for the yet to be released 60~250 UCM and an "L" quality >> >T/C. Any rumblings of a development or release schedule for such? >> >> Not that I know of. >> >> I would love to see a new high quality 1.4x converter too, >> would be real nice if it also translated the focallength as >> sent to the camera ... >> >> (Or we need an addition function in the firmware to enter that :-) >> >> >> There are a few (old) third-party TC's that have the power-contacts >> needed for the UCM (or is it SSM ?) new 'supersonic motor' lenses. >> Optical quality is quite bad on those though ... >> >> >> Regards, JvW >> >> ------------------------------------------------------------------ >> Jan van Wijk; http://www.dfsee.com/gallery >> >> >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> PG> -- PG> Regards PG> Patrick Genovese -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
