From: John Francis

2009-12-15 Thread John Sessoms
May not have anything to do with it, but are you sure the diopter is set correctly? That's not how the diopter correction works. There's nothing you can do with the adjustment to make an out-of-focus image on the focussing screen appear sharp. My understanding of how he described the

Re: From: John Francis

2009-12-15 Thread John Francis
On Tue, Dec 15, 2009 at 11:19:24AM -0500, John Sessoms wrote: May not have anything to do with it, but are you sure the diopter is set correctly? That's not how the diopter correction works. There's nothing you can do with the adjustment to make an out-of-focus image on the focussing

Re: From: John Francis

2009-12-15 Thread Boris Liberman
On 12/15/2009 8:11 PM, John Francis wrote: Well, in the world where the laws of physics and optics apply, that is nothing to do with the diopter. If there is a sharp image on the focussing screen, but not at the same point as on the film/sensor plane, that's caused by a problem with the

Re: From: John Francis

2009-12-15 Thread paul stenquist
On Dec 15, 2009, at 1:11 PM, John Francis wrote: On Tue, Dec 15, 2009 at 11:19:24AM -0500, John Sessoms wrote: May not have anything to do with it, but are you sure the diopter is set correctly? That's not how the diopter correction works. There's nothing you can do with the

Re: From: John Francis

2009-12-15 Thread Rick Womer
of a brighter image--but less accurate manual focusing. Rick http://photo.net/photos/RickW --- On Tue, 12/15/09, Boris Liberman bori...@gmail.com wrote: From: Boris Liberman bori...@gmail.com Subject: Re: From: John Francis To: Pentax-Discuss Mail List pdml@pdml.net Date: Tuesday, December 15