[pure-silver] Re: Bulb for Focomat IIc
- From: "Gary W. Marklund" <Gary@xxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Thu, 21 Dec 2006 07:31:15 -0700
At 12:26 AM 12/21/2006, you wrote:
Quoting "Gary W. Marklund" <Gary@xxxxxxxxxxxx>:
snip
> My 1C calls for an Opal 75 watt. So, I guess the 211 is what you want.
The Ic does not call for 75w (earliest documentation suggested 75w given
heat and the very long exposures demanded by then contemporary papers) but
is (in general) suitable also for 150w. Later versions (more elongated, egg
like shaped, versus nearly round) were explicitly also for 150w and most
that saw commercial action got 150w bulbs (time was and still is money).
My "manual" is a downloaded reprint of a 15 page document titled
"focomat Ic Instructions for Use", Ernst Leitz gmbh Wetzlar. Back
page says Branch Works: Ernst Leitz (Canada) Ltd, Midland-Ontario.
List Photo No. 6095a/Engl. X/52/LX. Printed in Germany K.
Waldschmidt, Wetzlar.
Topic C on the top half of page 6 states "The 75 WATT BULB normally
supplied and used in conjunction with the condenser lens yields a
diffused illumination advantageous for miniature negatives as
blemishes or dust particles on the back of the film are prevented
from appearing on the picture and harmonious enlargements are
obtained." Next to that paragraph is a diagram of the lamphouse
showing a light bulb with the inscription "75 W Opal Lamp".
Probably a misprint or it got scrambled during the download, sorry.
Gary
snip
> Gary
>
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