Is the Canon 85mm f1.8 focusing time quicker on a 5dm3?

[connellimages]

I love this lens for portraits. But I shot a children event the other day and took my 1DX. Lost some good photos because of slow auto focus. I just bought a 5dm3 and haven't used this lens on it. Would that have been a better choice or was the choice of lens just a dumb move overall. (regrets suck)

 

[raptor3x]

I love this lens for portraits. But I shot a children event the other day and took my 1DX. Lost some good photos because of slow auto focus. I just bought a 5dm3 and haven't used this lens on it. Would that have been a better choice or was the choice of lens just a dumb move overall. (regrets suck)

How fast were these children? The Canon 85 1.8 is one of the fastest focusing lenses made by any manufacturer. If the 1DX + 85 1.8 wasn't fast enough to track them then nothing will be. Also, the 5D3 is a bit slower to focus than the 1DX so I wouldn't expect it to do any better.

 

[Besisika]

I love this lens for portraits. But I shot a children event the other day and took my 1DX. Lost some good photos because of slow auto focus. I just bought a 5dm3 and haven't used this lens on it. Would that have been a better choice or was the choice of lens just a dumb move overall. (regrets suck)

How fast were these children? The Canon 85 1.8 is one of the fastest focusing lenses made by any manufacturer. If the 1DX + 85 1.8 wasn't fast enough to track them then nothing will be. Also, the 5D3 is a bit slower to focus than the 1DX so I wouldn't expect it to do any better.

This surprises me too.
I shoot boxing with 1DX + 85 1.2 and I have no trouble. The 1.8 version is a lot faster than the one I am using.
The 5D is slower than the 1DX for sure. I own both.
Provide more detail about the circumstances (lighting + their movement), maybe someone who was in similar situation can suggest you a better way to program your focusing option.

 

[Dylan777]

I own both cameras....the 1DX is faster on all my lenses

 

[skoobey]

No.