[MF3D.FORUM:790] Re: Deviation

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>Don Lopp wrote:
>
>> | I do not understand where the 2 plus mm deviation came
>> | from-it sure does not work with me, 1.5mm is more than
>> | I can handle. I will send some slides with 1 mm and 1.5
>> | mm and see what he says along with the rest of the fellows
>> | in his follio Don
>

>My impression is that Greg Erker is usually comfortable
>with more than the theoretical maximum MAOFD.  Therefore,
>I suspect he has included images in the folios with OFD
>ranging from 2.5 to 3.0mm.  Greg can correct me if I am
>wrong.

  My rubber eyes can probably fuse images with
5mm of OFD in them. I haven't measured how much
I can fuse.

>Don, do you typically have trouble fusing the images that
>others include in the folios?

  Good question.

  I sometime go a bit over 3mm in my folio
contributions. But ones that exceed the
2.7 or 3mm by a lot stay out of the folio.

  Don's viewer has much shorter FL lenses
than the rest of us. 45mm (is that correct
Don?). So to keep the angular devation
comfortable Don would likely shoot with
2/3 or so of the devation that the rest of
us (using 80-ish mm viewer lenses) would
use.

  But then all our max deviation shots should
be hard to view for Don. Hmmm....

  Is it possible we are talking about 2 different
deviations? If I said 3mm on-film deviation I
would have overlaid the two film chips. Lining
up the tree trunks at infinity distance and
measuring the separation of the nearest blade
of grass in the foreground.

Greg E.