The iSight camera in the Retina mini remains unchanged from last year's original. It's still the same 5 megapixel, backside illuminated (BSI), five-element, hybrid IR file red, and f/2.4 aperture. What has changed is the Apple A7 processor inside, and the image signal processor (ISP) inside it. That's 2 generations ahead in terms of imaging technology, which includes auto white balance, focus, exposure, face-detection, and more. In daylight, when the sun is flooding it with photons, there won't be much if any difference. When it comes to low-light, however, the A7 ISP pulls a little more detail out of the darkness, same as the iPad Air, but certainly nowhere near as good as the superior optics in the iPhone 5s. So the question becomes, how good - or bad - is it?