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Archive 2014 · ? Question regarding 5D3 min SS in AV

  
 
boingyman
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p.1 #1 · p.1 #1 · ? Question regarding 5D3 min SS in AV


Quick question. Sometimes I want to use AV so that I can EC with autoISO when I'm doing on-the-go street photography with constant variable light. I've only tried it 2-3 times, but I noticed when setting minimum shutter speed to 1/250 it would still go below 1/250. I believe it did it even when I set the ISO. This is in daylight too...

Any reason for that? Am I doing something wrong? I will try to mess with it later this evening when I get home. Just curious if it's just my ignorance or something buggy is going on...

Thanks!



Aug 11, 2014 at 06:15 PM
RAF09
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p.1 #2 · p.1 #2 · ? Question regarding 5D3 min SS in AV


You must have "Safety Shift" enabled. It prevents a bad exposure by adjusting either TV or AV values. Find it in the CFn section menu and turn it off and see if your "problem" goes away.


Aug 11, 2014 at 06:48 PM
Pixel Perfect
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p.1 #3 · p.1 #3 · ? Question regarding 5D3 min SS in AV


Yes, I agree it has to be a safety shift setting.


Aug 11, 2014 at 06:58 PM
skibum5
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p.1 #4 · p.1 #4 · ? Question regarding 5D3 min SS in AV


Safety shift.

Also I believe ML may be updating to get rid the absurd 1/250th limit that Canon marketing them put in for who knows what foolish reason. Some of the non-mainstream side codes of the ML for 5D3 already remove it and offer EC in AutoISO M mode as well.




Aug 11, 2014 at 11:14 PM
boingyman
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p.1 #5 · p.1 #5 · ? Question regarding 5D3 min SS in AV


Ah thanks! Forgot about safety shift. Yeah, 1/500 would be better especially in 1/3 increments.


Aug 12, 2014 at 09:53 AM
skibum5
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p.1 #6 · p.1 #6 · ? Question regarding 5D3 min SS in AV


boingyman wrote:
Ah thanks! Forgot about safety shift. Yeah, 1/500 would be better especially in 1/3 increments.


actually 1/2500th or even 1/4000th would be better, even 1/500th is tragically slow for sports and it's precisely for action when high shutter speeds are needed that you'd be most likely to not have time to set ISO yourself



Aug 12, 2014 at 05:25 PM
wordfool
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p.1 #7 · p.1 #7 · ? Question regarding 5D3 min SS in AV


This illustrates one of the most baffling things about Canon... why such a basic feature like auto-ISO cannot be implemented properly when all other manufacturers seem to have managed it.


Aug 12, 2014 at 06:57 PM





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