Hello Patrick, My hunch is that if you are going to have the TC on most of the time then the bigma lens would be better. I am the opposite, I mostly don't use the TC, so the benefits of the 100-300/4 come into play making it the better choice for me.
-- Best regards, Bruce Wednesday, August 22, 2007, 8:32:50 AM, you wrote: PG> Hi Wendy, PG> Given that you own a 50-500 what is the effective maximum apterture at 400mm ? PG> I intend to shoot sports (usually in good light we are blessed with PG> that here). and nature photography. The down side of the 100-300 is PG> that to gain the 420mm focal length you have to fiddle with adding the PG> T/C which may not be practical in an "action" situation this means PG> that I will end up using it with the TC most of the time. PG> Regards PG> Patrick PG> On 8/21/07, wendy beard <[EMAIL PROTECTED]> wrote: >> I have both of those lenses, but I don't have the TC to compare the >> quality difference if the 1.4x tc is used. >> I'm selling my 50-500 (posted here approx 2 weeks ago) as I don't need >> the reach. >> Also I find it a little large and unwieldy as it lengthens when zoomed >> out fully. >> >> Wendy >> >> On 8/19/07, Patrick Genovese <[EMAIL PROTECTED]> wrote: >> > I'm going to be needing a long telezoom approx 400mm at the long end >> > for nature photography ... the 50-500 seems to be very popular for >> > this type of photography. How does it compare with 100-300 + 1.4x TC >> > combo ? >> > >> > Regards >> > >> > Patrick Genovese >> > >> > -- >> > 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 >> PG> -- PG> Regards PG> Patrick Genovese -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
