Archived posting to the Leica Users Group, 2008/04/25

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Subject: [Leica] noctilux factoid of the day
From: red735i at earthlink.net (Frank Filippone)
Date: Fri Apr 25 11:53:54 2008
References: <380-220084525144822954@M2W025.mail2web.com> <f091c6f20804250832q498c3785u14d7e2da9a73de63@mail.gmail.com> <00d501c8a6f0$47fc7b70$6101a8c0@jimnichols>
 
Looks like I was wrong.....

Electro-mechanical Computational machines ( Marchant) were common and used.

I love the part where someone did some calcs on  the Marchant, put something
in a equation, which would then project a set of Log Tables on the
wall.....then fiddled, 
Then they did the ray tracing to see if it all worked......

OK,  1960's Optical design technology was most likely done using
"electro-mechanical" computers......  And therefore the Noctilux was
probably designed in all or partly using things like Marchant.



Frank Filippone
red735i@earthlink.net

>
> http://www.optics.rochester.edu
In reply to: Message from wildlightphoto at earthlink.net (wildlightphoto@earthlink.net) ([Leica] noctilux factoid of the day)
Message from clive.moss at gmail.com (Clive Moss) ([Leica] noctilux factoid of the day)
Message from jhnichols at bellsouth.net (Jim Nichols) ([Leica] noctilux factoid of the day)