In a message dated 6/16/99 1:23:42 PM EST, jahudson@xxxxxxxxx writes:
<< Now that I have run the spot and shadow control experiment using an
admitedly dark subject [the black leather] and seen a jump in exposure from
1/30 to 1/200 at the same aperture I am wondering just how accurate the
combined spot and shadow exposure feature really is.. >>
John,
The short answer to what you are wondering about goes like
this:
The HIGHLIGHT control adds two stops exposure to the spot metered reading.
The SHADOW control decreases exposure by 2 2/3 stops from the spot metered
reading.
Basically, you must spot meter a white area first then press the Hi
LIGHT button to get white. You can't meter your black chair and then press Hi
LIGHT and expect to get a correct exposure.
You're thinking that HiLight and Shadow are some complicated exposure
metering system in its own right. It is not. It is just a convenient way to
add exposure compensation _to your already taken spot meter reading_.
Hope this helps,
George S.
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