Re: Mounting to window vs. infinity

[P3D John Bercovitz <bercov@xxxxxxxxxxx>]

George "Heartless" Themelis writes:

> Project them as mounted.  Let the crowd suffer and the judges kill them.  
> That will give the message.

You know, when we have our international stereo competition, the 
projectionists can go to sleep because practically all of the entries
are mounted right.  Really, by doing all this projector adjustment, we're
probably doing our club's members a disservice.  We should align with a 
standard slide and then just leave the projector alone (except for focus).
Is this the consensus of projectionists here on the list?


Speaking of mounting to infinity, you may remember a while back that
Steve Spicer came up with an idea for those who do mount to infinity or
those who do mount to infinity when infinity is in the scene, like Dr. T
does.  The idea is to file a notch at the bottom of each film gate.  The 
notches are spaced the same as the lenses.  Now if you have infinity in 
the scene but you don't have any contrasty objects at infinity, you can 
mount the notch marks at the infinity spacing.  It works particularly well 
with white or reflective mounts because then you can see the clear notch 
against the white mount and use your mounting guide to set the notch spacing.  
The reason the notch is clear is that it is at the bottom of the film gate
which means often as not it has the sky in it or a white ceiling.

You can file in the notches with a three corner Swiss file.  You measure
with a precision rule and just drift the notches around until they have 
the right spacing.  Technically, any spacing would do but then you'd have 
to make your own special mounting guide rather than using a standard one.

John "Heartless" B


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