I've just bought an optical zoom lens for my Samsung S4 (I'm a web developer and blogger so I thought that it would be a handy tool for taking photo's when out and about without my main camera). The thing really is a nice little tool but the problem the whole image is blurry when it's at anything but full 12X zoom. Can anyone tell me why this might be and if there are any solutions to this problem?
This is not a zoom lens, but rather a 12x magnifier with a manual focus. You are not adjusting the amount of zoom, but rather the focus. It is only not blurry at one setting because that is when the focus is properly adjusted.