On Thu, 7 Jul 2005, Rob Studdert wrote:
On 6 Jul 2005 at 17:59, Jon M wrote:
This isn't focusing past infinity, it's not reaching
infinity. :(
If the mirror rest sags/degrades then this would be the net effect as the
focusing screen ends up being virtually positioned behind the actual plane of
focus.
Yes, but that would not affect the picture of an object at infinity
with the lens set at infinity, would it? The mirror and the focusing
screen don't come into play in this equation, I don't think. The
picture in question from the OP:
http://jon.beigetower.org/photography/135infinityfocus.jpg
Kostas
