I had a Vaio model number: VGN-SZ1VP/C, which did a 1.5x and a 2x zoom.
I understand an optical zoom would be out of the question.
All I wanted was a digital zoom, like any cheap model phone can now do.
I think Sony are being lazy, they could do it 6 years ago with the VGN-SZ1VP/C laptop, why not now.
I cannot see why a software upgrade couldn't take the large image it can capture, crop it to appear like a zoom and transmit it as a smaller image.
My cynical self agrees with 'mydearcosmo'.
Anyway, I finally got an email from Sony, saying it cannot do these simple things.
Thanks for your help Blencogo.