Vertical shooting focusing?

[lay85]

I've been experiencing something for quite a while now that I can't solve so am looking to see if other people have the same issue and/or know of a remedy?
Whenever I hold the camera vertically the number of shots that are in focus drops to about 1%, switch back to horizontal and it's close to 95%. Shooting with 5D3 & 1Dmk4 and good lenses (24-702.8mkII &70-2002.8mkII) Been going on for several years so have tried all focusing options and combinations.

 

[zim]

On both cameras?

Are you using different focus point options for horz and vert? My experience going from 500d to 7d is quite the opposite, way more keepers in vert than I was previously getting.

 

[lay85]

Yes, both cameras and even other cameras I've had over the years. Tried every possible option with focus points etc. I shoot fast moving sports from a moving vehicle so not easy for the cameras just can't understand why holding the camera vertically confuses them!

 

[beforeEos Camaras]

Yes, both cameras and even other cameras I've had over the years. Tried every possible option with focus points etc. I shoot fast moving sports from a moving vehicle so not easy for the cameras just can't understand why holding the camera vertically confuses them!

you have to check your servo tracking settings when you go vert you have less left to right spots and you need to have high sensitivity settings cant help more then that. your moving and the subject is moving 1% is all you might really hope for.