Archived posting to the Leica Users Group, 2017/02/03

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Subject: [Leica] New tutorial on my photo lessons website
From: eddy at altphoto.be (Eddy Willems)
Date: Fri, 3 Feb 2017 19:24:32 +0100
References: <D4B91844.812E4%chris@chriscrawfordphoto.com>

there is something wrong on page 2 of your manual

The Kodak Gray card is made to give you 18% gray
it is I think the only card on the market today that gives you the 
perfect 18% gray
it is a card the measure the light
because all light-meters used to be calibrated on this 18 % gray
but the kodak gray card doesn't reflect all the colors in the same amount
that's why they made digital gray cards
these are not meant to meter the exposure
the name is wrong we better cal these white balance cards
it is always better to use one that's not grey
the WhiBal G7 in your collection is the best

when you use the ccp they advise you to use the the second path on the 
white side of the bw strip

I teach photography and every year when I explain the difference between 
exposure metering and white balancing
I ask the students to put their gray cards on the table
then you see a big difference between them, you even see big differences 
between cards from the same manufacturer.

white balance metering is also different as exposure metering, you have 
to hold the card different

and color temperature metering without camera calibration is only half 
the story

best regards



Op 2/02/17 om 23:09 schreef Christopher Crawford:
> I have just added a new tutorial to my Photo Lessons website!
>
> White Balance Demystified
> <http://crawfordphotoschool.com/digital/whitebalance/index.php>
>



Replies: Reply from chris at chriscrawfordphoto.com (Christopher Crawford) ([Leica] New tutorial on my photo lessons website)
In reply to: Message from chris at chriscrawfordphoto.com (Christopher Crawford) ([Leica] New tutorial on my photo lessons website)