I have the same webcam controller, for my Logitech C615. But I cannot use it to zoom in while using "Video Capture Device". I need to be able to resize my webcam, but it just won't work. I have to use the actual webcam software and then window capture the zoomed in video but it distorts my video footage very much (since I can't reach 1920x1080 resolution). Do you have a work around?With my webcams (Logitech C910 and C920) I have a webcam controller that looks like this: http://i.imgur.com/iEFkCU5.png
Perhaps he has the same thing.