Archived posting to the Leica Users Group, 2002/07/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> Aram Langhans wrote: > > Wow, that is really strange. Why is it that in the second, third and > fourth photos, the top corners and the edges are fine but the top > middle of the frame is trippin'? The corners are the same distance > away from the lens as the top edge, but have a very different out of > focus effect. It is like an out of focus wedge moving away and towards > you from the main point of focus. > > I noticed the same thing. I guess it must be due to curvature of field > or greater resolution at the centre than at the edges or, possibly, a > combination of both. > > Regards, > ==== > Ray > > "The trouble with resisting temptation is > you never know when you'll get another chance!" > Very true,what does a area of unsharpness look like with a sperical lens?a flying saucer going vertical ,perpendicular to the lens axis? - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html