[MF3D.FORUM:572] Re: MF Viewer interoculars

[Robert Thorpe <thorpe@xxxxxxxx>]

Paul Talbot wrote:
> 
> The centerline spacing of the mounts, or the normal
> infinity spacing of images in those mounts?  In MF
> the difference would be 2.5 to 3.0 mm.

Greg Erker wrote:
> 
>   That means that the window (mount edges) and
> the nearest objects are viewed parallel. And
> further objects and infinity require some
> diverging of your eyes.
> 
>   On my viewer I put the lenses slightly further
> apart than infinity spacing (66mm I think) based
> on John B's wisdom.

This is beginning to sound like the "mount to the
window" vs "mount to infinity" debate again. I think
if you mount to the window, infinity spacing will
always be variable. It will depend on how close the
closest object that touches the frame is. Meaning,
if you mount to the window, you cannot set your
lenses for infinity if they are fixed. If you mount
to infinity then you are all set. I decided 
a long time ago that mounting to infinity and not
to the window was much less pleasant to view.

======================
Robert Thorpe
Cedar Rapids, IA
thorpe@xxxxxxxx
http://www.skep.com