None of the digital manufacturers use 18 percent gray as the
standard. They use 12 percent. If you take a picture of an evenly
toned subject, like the side of your local supermarket using a
noncompensating metering mode all the values will be below the center
of the histogram.
Here are two good articles:
http://www.bythom.com/graycards.htm
http://www.bythom.com/histogram.htm
Winsor
Long Beach, California, USA
On Aug 3, 2006, at 3:40 PM, AG Schnozz wrote:
> Has anybody been using an incident light meter in combination
> with shooting digital? I've been attempting to "calibrate" my
> methodology and haven't quite been able to square up my readings
> with what I'm seeing with histograms.
>
> I'm wondering if it's the classic 18%=middle grey dilemma biting
> me?
>
> Just because we "can" use histograms most of the time, doesn't
> mean that they work ALL of the time. It's in these odd lighting
> conditions where I need my handheld meter and I can't seem to
> get my images to match what I think the exposure should be.
>
> AG
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> ==============================================
> List usage info: http://www.zuikoholic.com
> List nannies: olympusadmin@xxxxxxxxxx
> ==============================================
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|