From: James Romeo (email@example.com)
Date: 02/11/00-03:34:22 PM Z
I remember back the late 40's and early 50's there were three numbers ASA,DIN and Westen The ASA was mostly USA DIN was Europe and Westen was for The Westen meter. Most films listed bolth Westen had a table to convert the numbers. Now it is all ASA. I have a old westen meter and the conversion is still taped in the meter case James Romeo
Subject: H and D Curve and the ISO Scale equivalents?
Date: Fri, 11 Feb 2000 12:34:06 -0800 (PST)
I was wondering if anyone knows just when we began to
use ASA numbers? I was looking at 1939-1950 magazine
ads for Ansco and Kodak sensitive materials and the
the lack of speed information is, well, noticeable.
Any one know of a chart listing the equivalent speeds
for the former H&D speeds with the ISO (or ASA)
Thanks... and sorry about the off topic(?)subject, but
the recent inquires of that um... commercial entity
just seemed to open this can of worms...that stuff
about international standards of light and...well if
you have any information, use your own discretion as
to whether it should go on or off list. Thanks.
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
This archive was generated by hypermail 2b29 : 04/24/00-04:37:10 PM Z CST