Jul 09, 2011 00:28 | #1 Hi, I've encountered a problem. It's a 50D, which I got from Canon as refurbished. I don't know since when it happened. Now, in Manual Mode, when I set ISO to auto, so that I only need to adjust the aperture and shutter speed, the ISO will ALWAYS end up being 400. I don't notice when it happens because I usually set the ISO manually as well.
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yogestee "my posts can be a little colourful"  More info | Jul 09, 2011 00:34 | #2 This normal.. The 50D will always default to 400 ISO when auto ISO is sellected when in manual mode. Jurgen
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nich0145 Member 90 posts Joined Jun 2011 Location: Malaysia More info | Jul 09, 2011 00:42 | #3 Did you put a flash on? And on e-ttl? If yes that's normally the case, just choose the iso speed you want. Nicholas
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Jul 09, 2011 00:44 | #4 yogestee wrote in post #12728311  This normal.. The 50D will always default to 400 ISO when auto ISO is sellected when in manual mode. Really? I don't mean to disbelieve you. But I tried the same thing on my 7D and the ISO is not always 400. It changes in order to get the light meter indicator in the middle. How comes 50D will do something that doesn't make sense?
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Jul 09, 2011 00:45 | #5 nich0145 wrote in post #12728341 Did you put a flash on? And on e-ttl? If yes that's normally the case, just choose the iso speed you want. I don't know since when it started. But a moment ago when I found this out, I was trying a manual lens with AF confirm. I'm not sure if this causes the trouble.
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krb Cream of the Crop  8,818 posts Likes: 8 Joined Jun 2008 Location: Where southern efficiency and northern charm come together More info | Jul 09, 2011 00:46 | #6 colormaniac wrote in post #12728346 Really? I don't mean to disbelieve you. But I tried the same thing on my 7D and the ISO is not always 400. It changes in order to get the light meter indicator in the middle. How comes 50D will do something that doesn't make sense? The 7D is a few years newer and is much more advanced. RTFM and you should find a chart that lists the ranges of ISO values that it will select under different conditions. -- Ken
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Jul 09, 2011 00:49 | #7 krb wrote in post #12728353 The 7D is a few years newer and is much more advanced. RTFM and you should find a chart that lists the ranges of ISO values that it will select under different conditions. What is RTFM? Where may I find the chart? Thanks!
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krb Cream of the Crop 8,818 posts Likes: 8 Joined Jun 2008 Location: Where southern efficiency and northern charm come together More info | Jul 09, 2011 00:52 | #8 |
Jul 09, 2011 00:57 | #9 Got it. In M mode the auto ISO is always 400. Interesting. I'm glad that 7D does not behave like this.
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yogestee "my posts can be a little colourful" More info | Jul 09, 2011 01:01 | #10 colormaniac wrote in post #12728346 Really? I don't mean to disbelieve you. But I tried the same thing on my 7D and the ISO is not always 400. It changes in order to get the light meter indicator in the middle. How comes 50D will do something that doesn't make sense? Having auto ISO in manual mode is about as useful as t!ts on a chicken.. Jurgen
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Jul 09, 2011 01:09 | #11 yogestee wrote in post #12728413 Having auto ISO in manual mode is about as useful as t!ts on a chicken.. If auto ISO was available in manual mode, then it wouldn't be truly manual would it? But then 7D is made this way.
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Hermeto Cream of the Crop  6,674 posts Likes: 2 Joined Oct 2005 Location: Toronto, Canada More info | Jul 09, 2011 08:40 | #12  Permanent bancolormaniac wrote in post #12728439 But then 7D is made this way. Same thing, the only difference being that 7D's tits are little bit younger and firmer.. What we see depends mainly on what we look for.
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Jul 10, 2011 05:56 | #13 yogestee wrote in post #12728413 If auto ISO was available in manual mode, then it wouldn't be truly manual would it? No, it becomes an Av + Tv Priority mode - where the shooter can set both shutter speed and aperture and let the camera vary the ISO to maintain correct exposure in changing light. I find it very useful (well more useful than chicken titz) when shooting video. Frank Hollis - Retired mass spectroscopist
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phreeky Goldmember 3,515 posts Likes: 15 Joined Oct 2007 Location: Australia More info | Jul 10, 2011 06:16 | #14 yogestee wrote in post #12728413 Having auto ISO in manual mode is about as useful as t!ts on a chicken.. If auto ISO was available in manual mode, then it wouldn't be truly manual would it? Actually I think it's an awesome feature. You can still choose an ISO if you want, but if auto it means you can decide on a shutter speed and aperture and let the ISO auto-select. You end up with:
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BigAl007 Cream of the Crop  8,118 posts Gallery: 556 photos Best ofs: 1 Likes: 1681 Joined Dec 2010 Location: Repps cum Bastwick, Gt Yarmouth, Norfolk, UK. More info | Jul 10, 2011 08:21 | #15 Then all they really need to add to make it work properly is to allow you to use exposure comp as well. At the moment they do not implement this. Pentax IIRC has a properly implemented version this which I think is oddly called ISO priority, as that is the one "name" of the exposure trinity that wasn't already being used.
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