You probably are. There isn't much chance of focusing when the mirror is down for visual control of the image's focus. And apart from that, focus sensors are not the same as an image taking CCD.
For once I am in agreement with Edmund.
A camera could be made with a semi transparent mirror
LIght then falls onto the chip
software analises the image(s) and works out the sharp point usiong contrast and iteration between subsequent images
Data is then fed back to the lens and the AF controlled
at this point your focus zone could be selected anywhere across the chip with a trackpad style device
$400 compacts have auto face recogition NOW
surely using a simlar process
I think the Hy6 and all current generation MF cameras were designed with a totaly 'analogue' head on
This is a real shame basically you should be able to properly control your camera using setups you make on the laptop
As I am investigating using my H1 underwater I realise exactly how archaic the controls of cameras like this are
I know the approximate distance of my subject and want to program the cameras AF to only hunt in that range for example - no way on anything MF