Gravitational lenses don't have these issues but they're insanely hard to carry and keep shape around... and I haven't seen any K mount black holes yet Cheers Ecke
2010/1/9 Graydon <o...@uniserve.com>: > On Sat, Jan 09, 2010 at 09:40:15AM -0000, Bob W scripsit: >> > It seems that my PFA 50/1.4 is a lot more likely to fog over, >> > especially when brought in from the cold, than any other lens I have. > > My worst one for this is the FA100 macro; it's an aluminium brick, and > has a lot of thermal inertia. I suspect traditional metal lens bodies > in general are worse than the polycarbonate ones. > > -- Graydon > > -- > 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.
