I have a Sigma 1.4 EX works very well with the Sigma 300 f/4 APO, all this discussion has got me wondering..........has anyone tried the 1.4 with the Sigma 105 EX Macro? Sigma does not recommend this combination on their site but I'm wondering if this is a marketing stratergy as they also produce the 180 f3.5 EX Macro. Any comments/opinion appreciated.
John ---------- Original Message ----------- From: Mark Roberts <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Sent: Mon, 11 Oct 2004 15:17:50 -0400 Subject: Re: Sigma AF 1.4X worth considering? > "Rob Brigham" <[EMAIL PROTECTED]> wrote: > > >There were several versions (at least 2 anyway) - the EX ones are pretty > >good, but before that less so. You need to check that the rear element > >of your lens will not crash into the front element of the convertor as > >it stands proud of the housing. Sigma have a compatibility table on > >their website for their own lenses. > > I have the EX 1.4 Sigma and it seems pretty good. Works well with AF > and MF lenses. Even works with the 80-200/2.8 The Sigma 2x will physically > fit on the 80-200 but the lens won't focus to infinity for some reason > (and it's an IF lens so it isn't a mechanical reason). > > -- > Mark Roberts > Photography and writing > www.robertstech.com ------- End of Original Message -------
