I do have a Simga 500mm F.4.0 mirror lens, which is sort of heavy and I do like it. Here is a link to to a photo of it on my photo.net page.There are three photos of it on that page....Joe
http://photo.net/photodb/photo?photo_id=5771640 -------------- Original message ---------------------- From: Thibouille <[EMAIL PROTECTED]> > I think mirror lens have the realyl advantages (well more or less) of being: > > * portable (but a bit too much, they are too lightweight for the focal > length IMO and as such difficult to stabilize). In the end you still > need a tripod which kinda negates the argument. > > * cheap. and I think this is the major point why people buy those. I > have one although I didn't pay for it (long term loan ;) I'm sometimes > very happy having it. I know I will *never* be able to pay for > "proper" 500mm lens. so I'm happy with my Tamron. > > True the bokeh is indeed very problematic. But as a chgeap astro lens > like moonshots (at least for a newbie like me) I think it is a very > acceptable solution... not without obvious drawbacks. > > -- > Thibault Massart aka Thibouille > ---------------------- > K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... > > -- > 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.
