In <3A046337.1B9560A5@xxxxxxxx>, on 11/04/00 at 11:27 AM,
John Hudson <xyyc@xxxxxxxx> said:
>On page 99 of the September 1940 issue of Popular Photography magazine
>is an advert for the "Haynes M.C.M. Photometer", described as "the
>world's most popular enlarging exposure meter" for the grand sum of
>US$4.85.
Ah, yes: balance the light in the highlights until the grease spot
disappears. Do the same for the shadows. Bingo! you have your density
range. Now, calibrate a middle tone with a well-made print, and from now
on, all your enlarging decisions can be made with your enlarging meter.
It was a JND better than an extinction light meter, and of course
depended as much on your visual experience as on what constituted a
"null" reading.
les clark / edgewater, nj / usa
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lclark@xxxxxxxxxx
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