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EOS Bodies - For Stills / Re: some pre-buy technical Q's on 5D3 from a Nikon user

« on: November 18, 2012, 07:15:50 PM »

I'm no expert but I do own a 5D3 and hope these answers are right - please feel free to correct me if they're not.

1)  Yes, you'd have to re-focus to see the AF point again.  Once you lock focus, a quick half-tap on the shutter illuminates the AF layer of the LCD again in red.

is it related to this issue? http://www.canonrumors.com/2012/11/canon-eos-5d-mark-iii-blinking-red-af-point-information/

2) I believe EC is only available in AV/TV modes.

3) I've never seen this feature on my 5D3, although it makes perfect sense. 

4) No face-recognition, that's in the 1DX

5)  Metering is center of frame only,  1-series bodies have metering linked to AF Points.

Hope that helps!   I have my camera sitting right beside me (my precious) so let me know if you have more questions

Uhm...  this is too bad ... basically all these functionalities are available in Nikon D800/600 ... which are in the same price range ...

1Dx is quite heavy, quite loud when it shoots, and incredibly expensive! 

anyway thanks for your contribute... btw ... is there any hacked firmware available out there that implements those functions!?  just thinking it would be nice ...

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EOS Bodies - For Stills / some pre-buy technical Q's on 5D3 from a Nikon user

« on: November 18, 2012, 06:21:51 PM »

Hi all,

my 1st post here, so be gentle! 

I'm coming from a Nikon DX nad in the process of upgrading to FF and today I was around during an important Canon event so I had the chance to try briefly the 5D3.

As all my lenses are DX and I won't use them in a nikon full frame body, I'd sell them anyway. So I'm evaluating both the "sides" of the fence.

5D3: very impressed for the quality of the body and the speed and reliability of the AF, the silent shutter mode, the high ISO performance. A bit less from the dynamic range and color rendition (even in raw) but I guess I cannot have everything.

Besides the normal differences in ergonomics I'm still perplex at some strange behaviours of the camera so here are the detailed questions (as Canon noob! ):

1) Is it normal that the AF point in the viewfinder blink red when in focus and then disappear?

2) camera in manual mode but with Auto-ISO on; it's not possible to have an exposure compensation, is it? I used the camera only for half an hour but I was not able to get it. I.e. : f/8 1/125 iso1600, I put +1 to exp comp and I still read:  f/8 1/125 iso1600 . Why?

3) Auto-ISO on and I can choose the slowest shutter speed and the max ISO value from the menu system, and it's ok but then, if I have a zoom on, the suggested shutter speed doesn't change to reflect the actual focal value of the zoom and the camera gives me always the same pair of aperture and time, doesn't it? why?

4) Metering and AF: does the camera have a face-recognition AF mode (not in Live view but normal shooting mode)? So that it tries to track and catch the human faces when AF is in Auto?

5) And does the camera link the AF data to the metering, changing the exposure according to the choosen in-focus subject (face)? I didn't get any evidence of that in my short test this afternoon.

Thanks very much, I really need to understand how it works!