Focus points on Canon EOS 40D

[danieljamesphoto]

Hi all,

noob question here but if i put my camera on auto 'green' it seems to use many more focus points that if i use any other mode.

If I put it on manual or any other semi-automatic modes then i have to use little joystick on the camera to select certain points, i.e. one focus square.

Not sure if this is making any sense :/?

 

[Phil Bennett]

Yep

Are you asking should this happen or is there another question you would like help with?

Phil

 

[danieljamesphoto]

I just want to know if there's a reason it seems to use more focus points when in auto than others? i just don't get why :/

I guess the way you can get more in focus as it were is to just open the f/stop up a bit more? i think i confused myself

 

[Dogfish_magnet]

personally i always use the centre focus point - that way i can chose where i want to focus in a image and not leave it to the camera to get it wrong.

 

[The Matt]

I have the 450D and I believe some of the other focus modes use multiple AF points, but one-point is the default. In most of the program modes, you set your af mode manually if I recall. Dig the manual out. it will clear things up for you.

 

[seriousrikk]

In auto the camera is making ALL the decisions with the exception of where it is pointed.
This includes which part of the frame covered by a focus point should be in focus.

In the other modes you can press the multi controllor to light up all the focus points if you so wish, but it will probably just annoy you by shoosing the wrong place to focus

 

[danieljamesphoto]

any idea what i change to get it to choose more focus points? i saw some video which showed it as the wheel at the top of the camera but cant get it to work for some reason :/

 

[admirable]

I don't have my 40D here but frommemory it's the top right button as you look at the rear of the camera, press that and then turn the wheel.

 

[danieljamesphoto]

got it thanks

 

[andyred]

Yes, seem to remember if your in "green" square the camera is in fully auto mode including all the focus points, if you go to "P", the camera is in kind of semi-automatic, where you can change some parameters, inc the focus points. Hope this helps