Microscoping into Iphone 12

iPhone 12 camera is used to capture the image using 0.5x,1.0x and 2.0x zoom modes. Such experiment is similar to capturing the image with 3 different cameras, so lets illustrate how we could compare actual image quality of each of those cameras in the field.

iPhone12Pro 2x

iPhone 12Pro 1x

iPhone 12Pro 0.5x

After I opened all 3 images in photoshop as layers and aligned and resized and aligned the images in all layers using the pin. I used 50% opacity when applying free transform tool. ( applied it only once)

alignment in photoshop using our landmark

After alignment and resizing we can see how our field of views look on top of each other. BTW after res

after resizing 0.5x image is 14630x10974 (160.5 Megapixels now)

Next 3 images are cropped along the border line of 2.0x image.
Each layer of the layers are saved into file for viewing with Fast Stone image viewer at different scale.

fitting the whole image

1.0x or (1:1 or 1 sensor pixel per display pixel), hard to spot the difference

at 3.0x zoom the 0.5x image starts to look unnatural with excessive step overshoot

at 7.0x similar thing happens with 1.0x

digital zoom: 10x, sharpening at 1.x increases aliasing or a smooth curve

digital zoom 20x: we start can see a point spread function of optical system at sharp peak here

very different connection of the peak to curved surface at 0.5 and 2.0x

digital zoom 7.0x, occluded car

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