We've taken Apple's newest iPhones all the way to Iceland to see how well they stack up against last year's model, but what about the original iPhone — and maybe everything in between? That's just what Camera+ app-maker and photographer Lisa Bettany has done with all eight of Apple's iPhone models thus far (except for last year's iPhone 5C) to show the difference a year — or seven — makes in terms of camera hardware.

Big jumps in macro and lowlight shots

Bettany tested macro shots, backlit shots, daylight, lowlight, sunset, and portrait shots. Each lets you see the full size, along with a quick sliver of each in a combined view. Some of the biggest findings are the improved lowlight capabilities of the iPhone 6 over the 5S, though Bettany found the camera's reproduction of skin tones while shooting portraits to be "slightly pixelated and blotchy-looking," and its rendering of sunset to be "much flatter" than efforts from iPhone predecessors.

The 8-megapixel camera found in the iPhone 6 and 6 Plus are basically identical, except for the fact that the one in the 6 Plus is equipped with optical image stabilization. As we've explained before, that feature is designed to compensate for hand-shake and camera movement, making it a potentially better solution for taking shots of non-moving objects and stabilizing video.

Hit Bettany's post for way more photos.