Originally Posted by
Mike Buckley
I'm going to jump into the discussion started by Bill, hoping to add to it rather than get in the way of it.
At the risk of the third cook 'spoiling the broth'
Originally Posted by
William W
Soft – (includes cloud cover, soft interior lighting either by diffused daylight through window or soft manmade lights. Etc )
Originally Posted by
William W
Your lighting scenario would be “Soft” and for my Camera I would set +⅔Stop as my starting EC for Av Priority and EVALUATIVE Metering – my guess is I would do similar for a Nikon D810 (using MATRIX Metering).
My assumption was that Bill's advice applied to a scene rather like that in the original post, e.g. where there is no sky to consider, it is just a reflective scene with no light source, or if any sky, just clouds lit from (their) behind.
Your query Kim:
Originally Posted by
KimC
My brain is thinking if it's still a cloudy day and a large white garment enters the scene, the camera's meter is going to want to over exposure that.
Which relates to when this happens:
Originally Posted by
William W
b) Change in ELEMENTS IN THE SCENE
Subject runs over to Mum who is dressed in a large WHITE flowing garment which occupies a large portion of frame - such a large area of white in the frame could confuse the Camera’s Metering and I would consider riding the EC to +1 or maybe +1⅓ in some circumstances.
So what has happened?
The meter had evaluated the scene to mid-grey and we had already set to expose more (by +2/3 stop EC), but now it contains much more white (compared to other tones) than it did, so the meter re-evaluates the scene.
Problem is; the meter cannot tell the difference between what (we know) really happened and the light on scene getting brighter, so it compensates by reducing exposure. This will dim the faces and other tones in the image (including the white, which will become a pale grey) in a manner we do not want, hence the need to effectively restore the exposure back to where it was - by forcing yet more +EC as Bill suggests.
This is where, having determined a correct exposure, I might switch to Manual (retaining these 'good' values), especially when shooting wildlife in very similar situation; e.g. where only the reflected luminosity of the scene is changing and I want to maintain the exposure of certain important elements of the image (e.g. face).
Of course, if I am already in Manual and using Auto-ISO, then I achieve this by switching to the relevant fixed ISO to maintain the exposure.
The human brain knows better than the meter, so we have to intervene when not fully Manual.
Hope that helps, Dave
PS, I don't think there's anything specific I need to respond to, from your reply to my post, except to say your thumb and forefinger problems obviously complicates things for you
I think it is a matter of practice to 'get comfortable', I am still developing my shooting habits.
In my view, a person doesn't have to be an 'always Manual' or 'always A' (Aperture Priority) shooter; use what's best for the specifics of the scene in front of the lens - and change that minutes later when what's being shot changes. That said, a period of enforced sticking to one method is probably necessary while we get used to how it works and build our experience level. I think that's where you are now with "A" mode.