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Archive 2013 · 5D Mark III and auto ISO
  
 
PaulCal
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p.1 #1 · 5D Mark III and auto ISO


When in Manual mode and auto ISO there doesnt seem to be a way to adjust for exposure compensation. The slider stays in the middle. I know its not the camera's fault it has to be me. Anyone try this?


Edited on Feb 23, 2013 at 09:47 PM · View previous versions



Feb 23, 2013 at 09:27 PM
Matt Howell
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p.1 #2 · 5D Mark III and auto ISO


You're probably in M mode, where exposure compensation is not available. You can adjust exposure compensation with auto ISO in Av, Tv, and P modes. If you use Av or P mode you can also set a minimum shutter speed in addition to exposure compensation while using auto ISO.

Example: Av mode, auto ISO, +2/3 exp comp, 1/250th minimum shutter.
(This will raise ISO to 25,600 before it lowers the shutter speed below 1/250th.)



Feb 23, 2013 at 09:44 PM
PaulCal
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p.1 #3 · 5D Mark III and auto ISO


Thanks Matt, you the man. Think I will stick to TV mode when using auto ISO


Feb 23, 2013 at 09:48 PM
dgdg
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p.1 #4 · 5D Mark III and auto ISO


More than one way to skin a cat I suppose. I love using manual while in low light and tend to Tv/Av in better light. If I need exposure compensation in manual mode, I'll look at the auto iso result and adjust the number/fraction of stops I need.


Feb 24, 2013 at 01:43 AM
Jeff Nolten
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p.1 #5 · 5D Mark III and auto ISO


Well, in M mode you can use the Q button to set exposure bracketing. A bit wasteful but you can set a high and low exposure bias and keep the one that works.


Feb 24, 2013 at 05:09 AM
 

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DavidP
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p.1 #6 · 5D Mark III and auto ISO


In a true Manual mode, exposure compensation doesn't make sense.

However, when you add in the auto-ISO feature, it DOES make sense (and is truly NECESSARY). Maybe Canon will one day realize this.



Feb 24, 2013 at 06:04 AM
PhilDrinkwater
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p.1 #7 · 5D Mark III and auto ISO


They've had 5 years now to realise. I'm not holding my breath...


Feb 24, 2013 at 08:28 AM
Beni
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p.1 #8 · 5D Mark III and auto ISO


Like what's with the max shutter of a 1/250, what on earth was the point of that limit other than some exec insisting cause he only ever uses shorter IS lenses. Sigh. 22 megapixels can do with a bit more choice on max shutter speeds...


Feb 24, 2013 at 08:50 AM
wilt
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p.1 #9 · 5D Mark III and auto ISO


Canon simply needs to re-implement Auto ISO...add 'Ev' mode to the choices of 'Av' and 'Tv', where in Ev you set shutter and aperture and the camera sets ISO (third side of the exposure triangle), and the EC control dial works to permit you to compensate the meter reading.

Then Manual is truly 'photographer sets EVERYTHING, camera sets NOTHING'.

That is the way that some other camera brands have implemented the trio of setting automation.



Feb 24, 2013 at 05:53 PM





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