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  5. What is mechanically happening in camera with exposure compensation?

What is mechanically happening in camera with exposure compensation?


4 years 9 months ago #651997 by Alfonso Camil
Is this doing the same thing as me moving aperture or shutter speed manually to adjust exposure?  Or is it doing something different to darken or brighten a shot?  
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4 years 9 months ago #652003 by Ozzie_Traveller
G'day Alfonso

Whenever I use bracketing for varied exposures, as the camera takes its 3-shots, in the EVF I see its alterations to the speed / aperture as each 'click' occurs. ie- if I am in Aperture mode and set bracketing for +/- 1-stop variation, I will see it quickly jump from the 'nominal' shutter-speed up by one-speed 'click' then down by one speed 'click' and all 3 images are captured

If I am in "P" Program mode and doing bracketing, the camera might vary both shutter & aperture during the 2nd and 3rd exposures to achieve the +/- 1-stop exposure variations

Hope this helps
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/
,
4 years 8 months ago #652254 by Alfonso Camil
So now I'm completely lost.  What is the difference from manually making such adjustments?
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4 years 8 months ago #652255 by Alfonso Camil
BTW thank you for the help!
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4 years 8 months ago #652260 by Nikon Shooter

Alfonso Camil wrote: So now I'm completely lost.  What is the difference from manually making such adjustments?


Mechanically? Nothing!
When using EV — like I always do — your just telling the
light meter to bias up or down the reading its doing,

The difference? It is much faster in M mode than any other
tweak to the exposure setup!

HTH!
Light is free… capturing it is not!
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4 years 8 months ago #652282 by Ozzie_Traveller
G'day Alfonso

As a follow-on from NS ....

When the camera shows you a certain combination of speed + aperture that it reckons will give an okay exposure, you can accept those numbers -or- via experience you can reset those numbers to create a result more in keeping with your mental vision of the scene before you. This is more or less what occurs when using full -M- Manual mode

However, if you are for example using Aperture mode -or- Shutter mode and the camera's first image does not look 100% to your internal vision of the scene, you can over-ride the camera via the +/- button and add or subtract exposure to then recreate the result back to the mental vision you have for the scene before you

Does this help?

Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/
,
4 years 8 months ago #652343 by Alfonso Camil
Awesome stuff guys, seriously thank you!!

Just one final point of clarity is needed here:

"However, if you are for example using Aperture mode -or- Shutter mode and the camera's first image does not look 100% to your internal vision of the scene, you can over-ride the camera via the +/- button and add or subtract exposure to then recreate the result back to the mental vision you have for the scene before you"

In this point, let's say I'm in Aperture mode.  Normally as I understand when in the mode, the camera will set the shutter speed and ISO to come to a correct exposure based on the aperture setting you dialed in.  So if in Aperture mode and you adjust exposure compensation, does the camera make needed adjustments with just shutter speed and ISO, or will it include aperture?


Thank you!
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4 years 8 months ago #652346 by Nikon Shooter
The aperture mode is a priority mode,
as is the shutter priority mode.

The selected mode will be unaltered.
Light is free… capturing it is not!
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4 years 8 months ago #652362 by Ozzie_Traveller
G'day mate

Chase up some info re: "the exposure triangle" where Aperture + Shutter + ISO all work together to create / modify your exposure for 'best' results

In the above discussion - yes, if "A" Aperture mode is set, then that is locked into place and any adjustments for more or less exposure come via alterations to the shutter speed or ISO or sometimes 1/2-1/2 with the camera altering both of them a little bit

Hope this helps
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/
Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/
,

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