RE: Exposure Value
RE: Exposure Value
- Subject: RE: Exposure Value
- From: Roger Breton via colorsync-users <email@hidden>
- Date: Fri, 21 Jun 2019 17:25:41 -0400
What led me to think the camera meter was kaput?
Well, you know me, I would never go outside Adobe's products Since I mostly
shoot in RAW, with this camera, it's only natural that I edit NEFs using
CameraRAW.
What I did notice is that all NEFs shot with this camera appear "darker" than
they should, when CameraRAW main interface comes up on my PC, as though my
camera was systematically under-exposing everything, you see?
I phoned the store where I bought the camera from, it's still under warranty
and was about to take it there earlier today when I thought of doing some
research on Exposure Value, to try to ascertain myself, whether my camera was
actually "under-exposing"? And as you can see, I have to reject this
conclusion.
I also compared with my age old "Antique", a Nikon D100, and I got the same
shutter speed / aperture value for the same ISO 400 sensitivity.
So is it CameraRAW? I don't dare think it is.
I was thinking, perhaps, opening some RAW NEFs using Nikon's own software, to
see whether the images still come out on the "dark side"...
Thanks for your help / Roger
-----Original Message-----
From: Wayne Bretl <email@hidden>
Sent: Friday, June 21, 2019 5:14 PM
To: email@hidden; email@hidden
Subject: RE: Exposure Value
? I see three methods in agreement. What led you to think the camera meter was
kaput?
Best,
Wayne bretl
-----Original Message-----
From: colorsync-users
<colorsync-users-bounces+waynebretl=email@hidden> On Behalf Of Roger
Breton via colorsync-users
Sent: Friday, June 21, 2019 1:56 PM
To: ''colorsync-users?lists.apple.com' List' <email@hidden>
Subject: Exposure Value
I know this may not sound very much like color management but I have to ask 😊
Here is a link to an Excel sheet where I compare the Exposure Value from my
camera to the Exposure values calculated from a scene original photometric
properties.
https://1drv.ms/x/s!AkD78CVR1NBqkLVHRATQaJhc56YZww
I suspect my camera “light meter” is kaput?
But after going through the calculations, I’m not drawn to the same conclusion.
If you have a chance and are familiar with Exposure Value determination, I
would appreciate you give me some feedback on my equations.
I think I’m on the right track but, since I never went through these equations
before, I have a doubt.
Best / Roger Breton
www.graxx.ca
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| | >Exposure Value (From: Roger Breton via colorsync-users <email@hidden>) |