5D Mark IV VS A7RIV Autofocus Speed?

[Dont_Hold_Your_Breath]

I know there are many differences between the 5D Mark IV and the A7R IV. I think most would say the A7R IV is in another class in terms of performance. However, according to the website imaging-resource the 5Dmark IV is considerbly faster at autofocus than the A7RIV. I was very suprised and a little suspicious...does anyone have experience with either of these cameras and can verify that the 5DIV autofocus is lightning fast?

Made this Chart Comparing both:

Here's where I fouind the stats for autofocus on both cameras:

5DmIV Stats:
Canon 5D Mark IV Review - Performance
A7R IV:
Sony A7R IV Review - Performance

 

[bvanant]

Well the two cameras were tested with different lenses, the Canon with an f 1.8 lens and the Sony with an f2.8 lens so some of the difference is due to that. But in general in my hands, the 5dIV is indeed incredibly fast autofocus.
Not surprising
Bill

 

[Dont_Hold_Your_Breath]

Well the two cameras were tested with different lenses, the Canon with an f 1.8 lens and the Sony with an f2.8 lens so some of the difference is due to that. But in general in my hands, the 5dIV is indeed incredibly fast autofocus.
Not surprising
Bill

Thanks Bill, apprecaite it! Do you usually shoot with single point autofocus?

 

[hedonist222]

I am finding that the autofocus on my 5DmkII with the Canon 100L lens is considerably faster than my Sony A7Rv with the Sony 90mm lens.

 

[Barmaglot]

I am finding that the autofocus on my 5DmkII with the Canon 100L lens is considerably faster than my Sony A7Rv with the Sony 90mm lens.

Do you have aperture drive on your A7RV set to 'Focus priority'?

 

[hedonist222]

Do you have aperture drive on your A7RV set to 'Focus priority'?

Hi Barmaglot.
I haven't gotten to those settings yet, new camera, so it's on default mode.

What would you recommend?
Obviously taking into consideration that this is for macro and underwater.

 

[Barmaglot]

'Focus priority' on that setting gets you the best focusing speed by keeping the aperture fully open while focusing and stopping down when you take a shot.

 

[sea_ledford]

That table appears to be for shutter lag once it is already in focus, not time to focus.

 

[Barmaglot]

That table appears to be for shutter lag once it is already in focus, not time to focus.

Aperture drive in AF setting affects focusing speed by varying the amount of light that reaches the sensor. If you set it to 'silent', it will focus at the shooting aperture, and when you're shooting macro at f/16-22, this will mean that very little light reaches the sensor. If you set it to 'focus priority', then will will maintain maximum possible aperture (typically f/2.8) during focusing, for maximum illumination, ensuring best AF speed, but there is a bit of noise as the aperture blades slam shut when you take the shot. Standard, IIRC, uses a moderately open aperture to focus.

 

[hedonist222]

'Focus priority' on that setting gets you the best focusing speed by keeping the aperture fully open while focusing and stopping down when you take a shot.

It was on focus priority.