Don't read this a s a recomendation, but the is a guy at DPReivew who does wonders with the Bigma. His nick is The hotell. Try to find his pictures and see for yourself. But I do think he needs very good light to do his magic.
What I see from Sigma 100-300/4 and 1,4x suggests very good bokeh for a zoom TC combo. Tim Typo Mostly Harmless ----- Original Message ----- From: "Christian" <[EMAIL PROTECTED]> To: "Pentax-Discuss Mail List" <[email protected]> Sent: Friday, May 11, 2007 8:34 PM Subject: Re: Long telezoom --- What to choose ? > Patrick Genovese wrote: >> I'm looking for a long tele zoom and i've whittled the choices down to >> the following options: >> >> I need to cover the focal length range from around 100mm to 400mm >> (before crop factor being applied) so here are the shortlist of >> options: >> >> a) Sigma 70-200 f/2.8 + 1.4x tc (98-280f/4) or 2x TC = (140-400 f5.6) >> With option I would think that the optical performance with the 2x >> converter may not be stellar... so i'm not too happy with that option. >> But OTOH i get f 2.8 between 70-200mm > > I don't think this is a viable option. If you want long, you should > look longer than 200mm without a TC. > >> >> b) sigma 100-300 f/4 + 1.4x convertor (140-420 f/5.6) I guess the >> 1.4x converter is not too much of a compromise. > > I've heard good things about this lens. I liked my 300/4 sigma. The > matched Sigma EX1.4x TC is very good. > >> >> c) sigma 50-500 ... this is the cheapest option but i have no idea how >> good this lens is. anf th f6.3 aperture at the long end puts me off a >> bit... Does any one know what the max aperture is at 400mm ? > > Not sure what the max aperture is at 400 but I do know that it is a bit > soft wide open and not super great at 500mm. It is a better choice than > the 170-500mm which is cheaper. > > > -- > > Christian > http://photography.skofteland.net > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.467 / Virus Database: 269.6.8/797 - Release Date: 10.05.2007 > 17:10 > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
