Autofocus?

[khobar]

I noticed the manual states to turn autofocus "off", but when I do I lose the focus controls in BYN. Is that correct? Just curious.

Camera is D5100, latest version of BYN.

[Bluester]

From my own recent experience yes, that is correct. Unless you can disable the autofocus routine on the camera and switch to shutter priority so that the camera will take a frame out of focus (Which I found I was able to do on the D3 I am using) you need to turn autofocus off, otherwise the focus routine will run when BYN commands the shutter open. The autofocus will probably fail and it effectively hangs the software. it is not actually hung but if the camera won't shoot the frame when it thinks it is out of focus  BYN sits there waiting for the camera to complete the action. It probably times out after a period but I did not leave it that long.

On the D3 I set the camera to shutter priority and changed the AF to only run when the AF ON button is pressed, that allows the camera to be left in autofocus mode so the focus chevron buttons are available in BYN. I am yet to try it out to see if the smallest movement is small enough to reliably get good focus.

[admin]

This is correct,this is a limitation of the Canon SDK, the focus commands works only when the auto-focus is enabled.  This is because (just a guess) that the lens focus motors are not powered when focus is set to manual.

Regards,

[stuboyle]

This is unfortunate.  The ability to focus directly on-screen was a primary contributor to me deciding to purchase this software.  When above the admin says "its a limitation with the Canon SDK"  I presume, he means Nikon rather than Canon.  Now, what Bluester describes above sounds like a work-around.  In the 4 years from the original post has anyone figure-out a way to get the focus controls to work reliably?  

 My primary camera is a D5600 and secondary is a D7500