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July 6, 2010

Canon EOS 50D's Auto ISO sets ISO to 400?

This has been driving me nuts. On Canon's EOS 50D, when you're in the Manual (M) mode, you set the ISO speeds for the camera. Unless you use the ISO expansion, your options range from 100 ISO to 1600 ISO. And then, there's the old "Auto ISO" setting. If you choose that, then Canon sets the ISO to...wait for it....400 ISO. Seriously? WTF, Canon? Are you truly that stupid. That's what "Auto ISO" means? 400? Arrrgh.

Apparently I'm not the only one that's driven batshiat insane over this.
http://www.the-digital-picture.com/Reviews/Canon-EOS-5D-Mark-II-DSLR-Digital-Camera-Review.aspx

"As with the 50D, the 5D II's Auto ISO feature has taken a big step forward from previous implementations - toward what I've really been looking for. The lowest ISO setting this feature will choose is now ISO 100 - down from ISO 400 - in all modes except portrait, when flash is used and - in M (Manual) mode. Auto ISO selects only ISO 400 in these modes. As I've said before, the big remaining step is to make auto ISO work in M mode which would give us "Aperture and Shutter Priority" auto exposure. I want to lock in the aperture and shutter speed and let the camera determine the ISO setting needed to correctly expose the images. In the auto ISO functional modes, the camera attempts to select a shutter speed that is handholdable for the focal length selected. Image stabilization and subject motion is not accounted for - a limitation to be aware of.

"

Posted by Rob Kiser on July 6, 2010 at 9:38 PM

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