How To Set Back Button Focus 5d Mark Iv

For Photographers: Setting upwardly Back Button Focus on the 5D Mark III

I just got the 5D Mark Three yesterday and the get-go matter I did was ready my custom functions. I wanted my custom functions to be similar to my setup for the Mark Two and so I could jump right into using the new camera confidently. The most of import custom function for me is setting up back button focus. I assign the AE Lock Button (*) for AF and metering. Some people volition gear up the AF-ON push to back button focus simply I detect that it's a bit too far abroad for my tiny thumb.

The reason I highly recommend dorsum button focus is that you don't have to accept your focus locked before releasing the shutter and y'all can recompose without having to refocus your shot every fourth dimension. To use back button focusing, you identify your focal indicate over the field of study, press your back push button (*) and then y'all can release the dorsum button and burn away. For notwithstanding subjects you can recompose every bit you'd similar without having to refocus. For moving subjects, you can rail the subject and consistently have focused shots.

How To set upwardly back button focus for the 5d Mark III:

1. Open up the carte du jour and scroll over to C.Fn2: Disp./Orientation

2. Whorl down to Custom Controls, Click Gear up

3. Scroll downwardly to Shutter butt. half-printing, click set

4. Scroll over to Metering commencement, click set up

v. Press Menu to go back to Custom Controls menu

6. Coil down to AE Lock Button, click fix

7. Roll over to Metering and AF showtime, click set

Now your shutter push is fix to meter when half-pressed and your AE Lock Button (*) is set to meter and autofocus when pressed.

Another function I am finding very helpful is setting the DOF Preview Button to toggle between One Shot and AI-Servo focusing. For portraits and not-moving subjects I generally use I Shot and for moving subjects I switch to AI-Servo (precessional, recessional, dancing, etc). So, beingness able to speedily toggle between the two is an added bonus in the Mark III.

One Shot: When you printing your back button, the photographic camera sets focus on your subject and holds that focal distance until the photo is taken. If you're shooting portraits or subjects that arene't moving toward you or away from yous, you should be shooting on 1 Shot.

AI-Servo: When you hold downwardly your back button, AI-Servo tracks focus on the moving subject area. And then, as your subject moves closer or farther away your camera constantly updates focus to keep the subject as sharp. If you're shooting the precessional, recessional or dancing you should exist shooting on AI-Servo.

Settings for using your DOF preview push to toggle focus modes for the 5d Marking 3:

1. Open the carte du jour and scroll over to C.Fn2: Disp./Orientation

ii. Scroll down to Custom Controls, Click Fix

3. Scroll downward to DOF preview push button, click gear up

4. Curl over to I SHOT->AI SERVO, click gear up