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Exposure issues Canon 70D
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Jun 15, 2015 14:52:09   #
Weddingguy Loc: British Columbia - Canada
 
mikedidi46 wrote:
Won't that cause the possibility of also causing imaging problems with exposure?


To what are you referring?

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Jun 15, 2015 15:34:23   #
mikedidi46 Loc: WINTER SPRINGS, FLORIDA
 
if the light changes too much and you are in manual, would the exposure under expose or over expose? I do not normally shoot in manual

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Jun 15, 2015 15:44:17   #
robertjerl Loc: Corona, California
 
mikedidi46 wrote:
if the light changes too much and you are in manual, would the exposure under expose or over expose? I do not normally shoot in manual


Depends on which way the light changed!

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Jun 15, 2015 16:38:24   #
oldtigger Loc: Roanoke Virginia-USA
 
robertjerl wrote:
Depends on which way the light changed!


and how far.
But it is ok because you are there to correct for the changes.

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Jun 15, 2015 17:10:34   #
Weddingguy Loc: British Columbia - Canada
 
mikedidi46 wrote:
if the light changes too much and you are in manual, would the exposure under expose or over expose? I do not normally shoot in manual


"To get the same exposure setting on all shots you must set the camera to Manual. Any small variation in light or subject color or brightness, as you move the camera, will cause a change in camera settings in any auto mode. (shutter priority is an auto mode)"

What I was speaking of in this statement was, for example, without the light changing, as in an outdoor portrait, a slight drop in the angle of the camera towards the sky of only a few degrees would cause the camera to see more or less of the brighter sky and it would adjust exposure accordingly, even though the light on the subject would not have changed.

If the part of the scene that is the key subject is not changing in brightness, but any part of the scene other than the subject can change, even if it is the amount of bright or dark background background the camera sees because of where it is pointed, then a manual setting is the only way to get consistent exposure on the subject itself. Here is a sample of exposure change by moving the camera angle only using an auto setting . . . .

Note change of roof brightness
Note change of roof brightness...
(Download)

Note no change in roof brightness
Note no change in roof brightness...
(Download)

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Jun 15, 2015 17:40:15   #
rthompson10
 
All,

THanks for the input.

Think I understand whats going on. I also need to shoot more to learn more

RT

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Jun 15, 2015 20:03:09   #
davidrb Loc: Half way there on the 45th Parallel
 
rthompson10 wrote:
All,

THanks for the input.

Think I understand whats going on. I also need to shoot more to learn more

RT


RT, when you do understand "what's going on" you will begin to understand the importance of exposure and today's cameras. The built-in metering systems are very technical and can undo the photographer's best intentions. A thorough understanding of the camera's meter will enable the user to utilize that meter more fully. This is one of the most critical parts of a great photograph. Tack sharp, preferred exposure, story-telling composition is what we are all chasing each time we capture an image. Of those three only the exposure is determined entirely by the camera. Learn as much as you possibly can about your meter and how it functions and your photographs will begin to look better to you.

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Jun 18, 2015 00:41:15   #
jetty56 Loc: New Zealand
 
Hi RT
I feel sorry for you .. I have the same set up and if you do a bit of research on the net you will find that this camera as a FEW focusing issues .. yes it's not the easiest of cameras to use. I would suggest that you lock it down in manual mode ( you can do a few test shots in full auto to get the all the settings) I would also suggest that u set it up for BBF (back button focusing) If you are using all 19 AF points make sure that they are on flexi as this camera is actually smart on moving subjects. Hope this helps.
PJ

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