Re: Novel Mounting Method

[michaelk@xxxxxxxxxxx (Michael Kersenbrock)]

> In mounting to infinity, you put infinity homologues the correct distance 
> apart for the format, usually somewhere around 63.5 mm.  Now if you put a 
> notch in each film gate directly behind each lens as Steve suggested, you 
> will create an artificial pair of infinity homologues.  This pair can be used 
> regardless of whether or not actual or convenient infinity homologues exist 
> in the pair.

For this method, wouldn't something like a corner or edge of the image work
better than a notch?  Seems like a notch along the bottom or top (to get
horizontal alignment) would sometimes be hidden by the portion of the mount
being used to hold it there.  A bit of information is lost (relationship
between images and where the lenses are in relation to them for the
given camera) but it's a constant "error" that can be easily offset for (once).

What is the other "near" notch mentioned in the suggested algorithm for, and
when would it be used rather than the "far" notch?  Especially when the image
itself isn't involved in the mounting process?  I'm no longer totally confused,
only a little-bit confused.  Three notches were used in the algorithm.

> > Seems that if fixed spacing would work, then Kodalux machine mounting would
> > work perfectly because I assume the chips themselves are machine aligned to
> > constant distances apart.
> 
> You're right, it should and would if 1) all cameras had the same lens 
> separation, as you point out above, and 2) if Kodak would take some care.  
> >From what I've seen of their work, the worst of it is they often don't get 
> the heights of the clips the same.  Of course sometimes they slop glue on 
> the film and rarely they even mount a clip so far off center that there's 
> daylight between it and the mount's aperture.  But mostly, it's height error 
> that's their least forgivable problem, IMHO.

I guess I just didn't think about this fixed-spacing method whereas the mailing
list seems to be dominated by mount-to-window'ers (including the person who wrote 
the instructions for that Reel-3D mounting thingie, which I have one of). :-)

I haven't had work come back from Kodak quite as bad as you have mentioned
(yet) but I've five rolls yet to show up that were "due back" last Saturday
(judging by previous return times).  Those mounted by Kodak which *need* me
to remount them usually need it due to foreground window-related reasons.

> > Did I miss something (haven't had my coffee yet this morning)?
> 
> Sounds like you've missed your coffee.  8-)

Yes, I *NEED* my roasted bean juice medication on a regular basis! Brain
doesn't function at all otherwise.  My insulated coffee cup is from the
"Sisters of Providence" Hospital (really, ... says "serving in the 
west since 1856" on it) !

I've had some since, am I better now?   I need another cup...... bye.

> 
> John B

Mike K.


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