Ken wrote:
>As for exposure, you will have to compensate by opening up at
>least 1 to 2, maybe even 3 stops depending if it is dull
>overcast, bright overcast or bright and sunny.
fcc wrote:
>Oh! Like any other meter, the meter will not give you white
>snow without compensation, typically between one and two stops
>depending on how bright a day it is. If you are using print
>film, try to err on the side of overexposure rather than
>underexposure. A polarizer would probably be useful as well
>(although not in terms of exposure compensation, of course).
These two suggestions and others I didn't quote indicated that more exposure
is necessary when metering snow. These tips will only work if you are using
a metering mode other than evaluative or if your subject is in less than
full sun. If you are using Canon's evaluative metering in bright sun there
is no need for compensation in most cases. The camera's processor
recognizes that the metered scene is brighter than daylight and adjusts to a
"sunny 16" exposure. In fact if you are using slide film and you want to
get the texture of the snow you might want to adjust exposure with 1 stop
less exposure to the "sunny 22" exposure as 2 professional nature
photographers recommend.
You can test this yourself as I just did (It just so happens today is a
bright cloudless day with a large snow covered field right outside my
office). Choose a bright sunny snow scene for your test. Set you camera on
centerweighted or average metering and take a reading. You'll get an
exposure reading of about f/16 @ 1/400 (I got 1/320) with ISO 100 film. Now
switch to evaluative metering and you'll get an exposure reading of f/16 @
1/100 (I got 1/100) with ISO 100 film. That's about a 2 stop difference.
Again this only applies to bright sun. If it is overcast or early in the
morning or last in the afternoon then you will need to apply compensation.
Art
*
****
*******
***********************************************************
* For list instructions, including unsubscribe, see:
* http://www.a1.nl/phomepag/markerink/eos_list.htm
***********************************************************
