Is it compatible? I keep reading it is but it never works for me. If i flip the MF on my lens and try using the wheel it quick focus in and out, its very abrubt.

Do i need to change something in my settings?

Hi Füli, surely Focus Wheel is compatible with Canon 5D MK IV.Please switch the lens between AF and MF to see which best fits your need. Please make sure the camera's AF Servo has been shut off when pulling focus, thank you.

Hi Füli, I have the same problem when using my 5DIV in combination with the EF 24-70 f./2.8 L USM II lens. While on MF pulling the focus wheel either way, switches focus from full back to full front on both focus ends. I tried every setting but nothing seems to correct it. What type of lens are you using with the 5DIV which renders this problem? All my other lenses seem to work fine (8-15 fish-eye, 16-35 f./2.8 L III, 85 f./1.4 L IS II, 70-200 f./2.8 L IS II)