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Learned something new to me about exposure compensation
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Jan 10, 2019 18:44:54   #
MadMikeOne (a regular here)
 
Apaflo wrote:
EV is Exposure Value which is an absolute measure of light. For example one meter might measure as low as -3.2 EV, another may only measure as low as -2.8 EV.

EC is Exposure Compensation, a relative measure of light. With EC set to -1.0 the meter will read the same light as 1 stop different than it does with EC set to 0. (Extra credit: With EC set to -1.0 does the meter read higher or lower.)


Totally off topic, just noticed your location is Anchorage. When did you move?

Oh I think the answer to your Extra credit question is that the meter will read higher. Not positive, though.

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Jan 10, 2019 18:56:46   #
Apaflo
 
MadMikeOne wrote:
Totally off topic, just noticed your location is Anchorage. When did you move?

Late summer, for better access to good medical care.

MadMikeOne wrote:
Oh I think the answer to your Extra credit question is that the meter will read higher. Not positive, though.

Why not positive. If EC=0 and EV measures 10, what will EV measure if EC is set to -2.0?

How about when EC is set to +2.0?

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Jan 10, 2019 20:01:21   #
GrandmaG (a regular here)
 
pesfls wrote:
I’ve been using a digital body about 18 months and have been amazed, frustrated & what not by all the options, menus & complexity of these machines. I use a Nikon Df fwiw.

What I’ve noticed is that sometimes ec doesn’t seem to do anything I can see. After fiddling around with this I’ve learned that the phenomenon is related to shooting in full manual. What I now understand is that in full manual mode using the ec dial only changes the meter scale, not the exposure itself. So one must readjust exposure manually after entering ec mode to recenter the meter reading. In the other modes such as aperature priority the ec dial functions as I expected. I had no idea this was the case when in full manual.

So I pass on my admittedly naive notion as false. Perhaps this thing I’ve learned will be of use to another shooter. That’s my only purpose in bringing this up. It seems one could spend years mastering all the options built into these modern cameras. A good day to all.
I’ve been using a digital body about 18 months and... (show quote)


This was a vey interesting discovery. I am away from home right now and can't test my Nikon; so I tested the Sony that I have with me. The EC dial changes in all modes, regardless if ISO is auto or not, EXCEPT in FULL MANUAL as you stated. Then instead of +/-, I get M/M that changes depending on where I point the camera, m for meter. I generally do set the EC at +1, but I most often use Auto ISO when I am in Manual mode. Thank you for pointing out that it doesn't work the same way when using the Manual mode and ISO is NOT auto.

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Jan 10, 2019 20:33:21   #
pesfls (a regular here)
 
GrandmaG wrote:
This was a vey interesting discovery. I am away from home right now and can't test my Nikon; so I tested the Sony that I have with me. The EC dial changes in all modes, regardless if ISO is auto or not, EXCEPT in FULL MANUAL as you stated. Then instead of +/-, I get M/M that changes depending on where I point the camera, m for meter. I generally do set the EC at +1, but I most often use Auto ISO when I am in Manual mode. Thank you for pointing out that it doesn't work the same way when using the Manual mode and ISO is NOT auto.
This was a vey interesting discovery. I am away f... (show quote)


You’re welcome GrandmaG. I was simply being naive in my assumptions and wondered if others might benefit from what I figured out. Glad what I found was of use to you. So I’m pleased my ignorance was of use to you & others.

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Jan 10, 2019 20:43:10   #
Swamp-Cork (a regular here)
 
pesfls wrote:
I’ve been using a digital body about 18 months and have been amazed, frustrated & what not by all the options, menus & complexity of these machines. I use a Nikon Df fwiw.

What I’ve noticed is that sometimes ec doesn’t seem to do anything I can see. After fiddling around with this I’ve learned that the phenomenon is related to shooting in full manual. What I now understand is that in full manual mode using the ec dial only changes the meter scale, not the exposure itself. So one must readjust exposure manually after entering ec mode to recenter the meter reading. In the other modes such as aperature priority the ec dial functions as I expected. I had no idea this was the case when in full manual.

So I pass on my admittedly naive notion as false. Perhaps this thing I’ve learned will be of use to another shooter. That’s my only purpose in bringing this up. It seems one could spend years mastering all the options built into these modern cameras. A good day to all.
I’ve been using a digital body about 18 months and... (show quote)

I just noticed it a couple of days ago---I took an image in Manual that was underexposed and moved the EC up +1 and no difference, +2 and still no difference and viewed the histogram and all appeared to be the same and then noticed when I viewed the exposure meter that it still showed the same underexposure for each one.

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Jan 10, 2019 20:47:27   #
pesfls (a regular here)
 
Swamp-Cork wrote:
I just noticed it a couple of days ago---I took an image in Manual that was underexposed and moved the EC up +1 and no difference, +2 and still no difference and viewed the histogram and all appeared to be the same and then noticed when I viewed the exposure meter that it still showed the same underexposure for each one.


That’s what happened in my case so I set about trying to understand what the heck was going on. I had turned off the histogram and that contributed to my confusion. It’s back on now in full color.

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Jan 10, 2019 22:22:23   #
Bipod (a regular here)
 
The great thing about digital cameras is that they are so simple and easy to use.
And they are continually getting simpler and easier.

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Jan 10, 2019 22:25:19   #
pesfls (a regular here)
 
Bipod wrote:
The great thing about digital cameras is that they are so simple and easy to use.
And they are continually getting simpler and easier.


I’m afraid you must be some kind of twisted individual.

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Jan 10, 2019 22:27:06   #
tdekany (a regular here)
 
Bipod wrote:
You are the victim of a "mode" In user interface design, modes are considered
a (sometimes necessary) evil.

In your car, the windshield wiper knob turns on the winshield wipers because
it is wired to the wipers and the headlight knob turns on the headlights because it
is wired to the headlights. Simple.

But in an embedded system such as your digital camera, any knob or button can
control any function. They are just input devices to a computer.. So a switch
different modes of operation, or work in combination with other switches.

On a digital camera, unlike an automobile, there are very few physical buttons and
switches, becaue they are expensive and take up space. So these few are generally
"overloaded" with functions. If your car was a digital camera, it would work
like this:

"In foobar mode, to turn on the headlights, hold down Button A while pushing
Button B twice. But in barfoo mode, to turn on the headlights, push Button B
then turn Knob C clockwise. Holding down Button A while pushing Button B
twice turns on the wipers."

In other words, some very smart Japanese engineer figures out what he thinks each
control should do in each mode. He may have a degree from pristigious Tokyo
University, but in all likelihood doesn't actually own a camera (he uses his smartphone
to take pictures). And he doesn't have to remember what the camera controls do--
he' s just designing it.

Back in the 1980s, people used to complain about programming their VCRs. Little
did they know what was coming....
You are the victim of a "mode" In user ... (show quote)


That engineer may actually be an excellent photographer.

You are such a negative person. Where are your photos to prove that you actually take photos?

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Jan 10, 2019 22:33:04   #
tdekany (a regular here)
 
Bipod wrote:
The great thing about digital cameras is that they are so simple and easy to use.
And they are continually getting simpler and easier.


No one is forcing you to purchase one

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Jan 10, 2019 22:33:40   #
tdekany (a regular here)
 
pesfls wrote:
I’m afraid you must be some kind of twisted individual.


Indeed he seems to be.

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Jan 11, 2019 00:00:21   #
Elmerviking
 
[quote=Linda From Maine]According to the user manual for the Canon 7D Mark II, settings will only change in M if you are using auto ISO.[/

????
Will settings change in M using auto ISO with exposure compensation?
I would think your settings, aperture and shuttertime, are locked and only ISO will change.
( I am not a Canon guy..I prefer Nikon.)
On all Nikons I have checked EC changes the exposure indicator (the 0 value) in full M mode and ISO if you chose M mode with auto ISO, but NEVER shutter time or aperture!

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Jan 11, 2019 00:08:41   #
gessman (a regular here)
 
A very enlightening thread and my thanks to those who have participated. I think I used to use exp comp way back in film days, albeit a primitive version. I seem to recall having cameras that perpetually over and/or underexposed whatever film I was using so I would set asa/iso up or back a notch or two to compensate for the bad exposure and when I had a good meter but wanted to saturate my images, slides mostly, rather than dial in more or less of shutter speed or aperture to move the needle, I would just set the asa/iso dial back a notch. I'm sure I learned it from someone else so I suspect there are many of us here who used the same trick? I think I also did something like that if I wanted to push or pull a roll of film for some special reason.

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Jan 12, 2019 20:10:28   #
Bipod (a regular here)
 
pesfls wrote:
I’m afraid you must be some kind of twisted individual.

Anybody who disagrees with the majority must be either mad or bad.

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Jan 12, 2019 20:13:55   #
pesfls (a regular here)
 
Bipod wrote:
Anybody who disagrees with the majority must be either mad or bad.

No. It was meant in jest.

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