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Re: [OM] OM4T / hightlight & shadow control

Subject: Re: [OM] OM4T / hightlight & shadow control
From: "Barry B. Bean" <bbbean@xxxxxxxxxxxxxx>
Date: Wed, 16 Jun 1999 14:23:02 -0500 (CDT)
If I understand both you and the manual correctly, then your camera
is doing just what it should. When you tell it to use a spot as
shadow, it underexposes to get a "true" black. When you tell it that
you're spotting a highlight, it assumes you mean for that to be white
(or at least overexposed enough to avoid unnecessary greying), no
matter what color it is.

BBB



On Wed, 16 Jun 1999 10:39:24 -0700, John Hudson wrote:

>When I re-spot metered with the camera and then pressed the shadow control
>button the exposure reading changed to 1/200 @ f2.8 which would result in a
>photo of a darker shade of black!
>
>I re-spot metered on the same chair and then pressed the highlight button
>and the exposure changed to 1/8 @ f2.8. Now this surprised me because I
>would have thought that for the highlight feature to work properly the
>camera's meter would have had to have sensed something white or highly light
>reflective. The longer exposure of 1/8 resulting from pressing the highlight
>button even though the normal spot metering showed 1/30 tells me that the
>highlight feature might be mimicking the characteristics of an incident
>light meter. However, in actuality, the mimicking in this case is false
>because the black leather is absorbing rather than reflecting light.
-
B.B. Bean - Have horn, will travel                              
bbbean@xxxxxxxxxxxxxx
Peach Orchard, MO                                       
http://www.beancotton.com/bbbean.shtml


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