On Wed, Apr 29, 2009 at 10:38:27PM -0500, Bob Sullivan scripsit: > Graydon, > Couldn't that be the 60-250mm set at 196mm?
It could be, but that's not what the EXIF says: Focal Length : 250.0 mm (35 mm equivalent: 375.0 mm) Hyperfocal Distance : 557.18 m > As for needing something longer for birds, > I learned with film that I couldn't afford it. > Mirror lenses have those annoying rings, and Well, yes, but sometimes that's a good thing: http://picasaweb.google.com/lh/photo/gHWNE6NG773wSkon9nD5PQ?feat=directlink and sometimes -- most of the time, it seems, with birds -- it just doesn't matter: http://picasaweb.google.com/lh/photo/-Nt9Mn_GSoCyK_TLEP22VA?feat=directlink Mirror lenses also have that initially-infuriating but often very useful paper-thin focal plane, that allows focusing through the vegetation. > anything bigger/faster than A400/5.6 is $$$$$. Yup. > For birds, you need to set-up in a hide. > My current alligator farm photos used A300mm f4, > A300mm with a AF1.7, or a AF70-200/2.8. > The situation was very favorable, but that's what you need. If it's possible to set up in a hide, certainly. Most of the places accessible to me don't allow that as an option. Even with the 10 foot distance available when lurking behind the bookshelves and taking pictures of the goldfinches at the feeder on the balcony, 300mm is not a lot for songbirds. -- Graydon -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
