I need a simple app to capture single frames from a high-res webcam. Like PhotoBooth, but saves the full resolution of the camera is what I'm looking for.
A similar question was asked here What app to use for high res webcam photo capture? - but I'm looking for an app that just does frame capture, not a more complicated app that does a bunch of other stuff, with the frame capture requiring multiple user steps.
Update: it's for capturing images off a microscope, so live preview of the camera output is essential. Something like Cheese for linux is what I'm looking for.