Igor PDML-StR wrote:
Thank for that link, - those are very interesting images, indeed. Motivated by your comment, I was further thinking about photographing distant objects. And I think I realized why our "everyday experience" tells us that it would be impossible.
Lick Observatory is easily visible with the naked eye from pretty much every place in the Santa Clara Valley, even forty miles away. As a kid I would see the antenna on top of mount Umunhum rotating. Jets fly overhead at an altitude of five miles.
Now consider that a 400mm lens is somewhere between 8 and 12 times the magnification of the naked eye, so 248 miles with a long lens is more like the equivalent of 25 miles with the naked eye. Actually, with that sort of cropping you need about 1500mm with a 24x36 sensor to fill the frame with either the Sun or the Moon.
So, yes, it's surprising until you think about it. -- Larry Colen l...@red4est.com (postbox on min4est) -- 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.
