Any evidence of the 5D3 underexposing in AV and M (flash)?

Started Dec 23, 2012 | Discussions thread
The Lazy Photographer Junior Member • Posts: 49
Re: Any evidence of the 5D3 underexposing in AV and M (flash)?

canon person wrote:

I find it necessary to add 1/3 or 2/3 additional exposure in both AV and M (flash) mode with my new 5D3. Anyone else experiencing similar underexposure? Thanks.

Canon Person

I'm experiencing the same thing. In some cases I've had to increase my exposure comp. by +1! Really sucks because in doing so my shutter speed drops accordingly (in Av) and I have to up my ISO to recover the shutter speed.

On the T2i the problem was the other way around, which really wasn't a problem at all. I'd have to set my exposure comp. to -1/3 to -2/3 to get proper exposure.

The results, for me, is that I'm having to shoot in low light at ISO 6400 shots that I would have gotten at ISO 3200 or even 1600 on my T2i.

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Gear: Canon 5D Mrk III and 24-105 F4 L Glass
Canon T2i (550D) | Tamron 17-50mm F2.8 VR | Tokina 11-16mm F2.8 wide angle | Canon 55-250mm F3.5-5.6 telephoto

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