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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 24 Mar 2011 (Thursday) 10:15
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From 40D to 7D - question about AF

 
Roxie2401
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Mar 24, 2011 10:15 |  #1

Just got my new 7D, plowed through the manual and this may be "just getting used to it," but -

On the 40D when the AF point achieved focus, it would flash red and the focus confirmation light would light steady. If I remember, this even happened when only a single AF point was selected - it would flash red + the confirmation light.

Am I correct in the 7D the AF point that achieves focus is black and you rely on the confirmation light? Specifically, if only a single point was selected - its already black in the viewfinder - so the only indication of "achieved focus" is the confirmation light?

If I'm right - this will take a little getting used to - I sort of liked that flash of the focus point - or did I miss a configuration option in the menus somewhere? (I know I can get the entire viewfinder to flash red but not the single AF point.)

And one other question - what does "AI" stand for, as in "AI Servo AF?" Been bugging me for a while now. I know what it does and when to use it, but never knew what the "AI" meant.




  
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soonerce
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Mar 24, 2011 10:21 |  #2

Set Custom Function III - 8 to 1 (enable). By default this is set to 0 and it only illuminates red under low light conditions. By changing this the camera will blink red regardless of the lighting.

I believe AI stands for Artificial Intelligence.


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Mike
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Mar 24, 2011 10:22 |  #3

AI stands for Artificial Intelligence: http://****/4h6qcbg (external link)


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1xSHOT
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Mar 24, 2011 10:23 |  #4

Hello,

Sorry for getting to the point, but on my way out.

Default is set to 0: Auto

To change:

Press Menu,
Select Orange Camera Icon in Top Tool Bar: Second from Last to the Right,
Scroll/Select C.Fn.III: Autofocus/Drive,
Toggle to Option 8
Press Set,
1:Enable,
Press Set,


= Enjoy ! :)




  
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Roxie2401
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Mar 24, 2011 10:28 as a reply to  @ 1xSHOT's post |  #5

Thanks but I know I can get the entire viewfinder to flash red with the custom function enabled - I just want the AF point that achieved focus to flash - not the entire screen. Maybe the entire screen is the best the 7D can do - the 40D only flashed the single AF point.




  
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Sdiver2489
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Mar 24, 2011 10:31 |  #6

Roxie2401 wrote in post #12083176 (external link)
Thanks but I know I can get the entire viewfinder to flash red with the custom function enabled - I just want the AF point that achieved focus to flash - not the entire screen. Maybe the entire screen is the best the 7D can do - the 40D only flashed the single AF point.

It flashes the point because only one is typically displayed dependent on focusing mode...just like the 40D but with only one point.


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Roxie2401
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Mar 24, 2011 10:39 as a reply to  @ Sdiver2489's post |  #7

I see what is happening - on my 40D I had the Ef-D focusing screen installed. So, on the 7D, I naturally turned on the VF Grid - in reality with the grid turned off, the point does flash but there appears remnants of red in the VF so it appears that the point is highlighted - with the grid turned on, you can see its the entire screen flashing.

Now I understand - the 40D only flashed the point - but the 7D with the electronic viewfinder its quite different. This viewfinder is "powered" all the time with the battery installed so I'm guessing its a projection screen.

Just wanted to make sure I didn't have a problem with the view finder since it looks like the whole screen flashes.

Thanks.




  
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apersson850
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Mar 24, 2011 11:21 as a reply to  @ Roxie2401's post |  #8

When the red flash is "fired" in the screen these things that are black will turn red.


Anders

  
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From 40D to 7D - question about AF
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