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fengshuidrone
Guest
I am lucky to be nearsighted and the focal lengths all workout with this kit so everything is sharp and in focus. I considered the fact that others could not see it well and needed to wear glasses and couldn't with these. I'm thinking most of them were farsighted people to whom the close screen is at the wrong focal length. I can see sharp and clear stuff within about ten inches at the farthest to three inches at the closest. The screen sits about four or five inches away from my eyes so it looks awesome. If I was farsighted and my optimum focal length was out there in the feet instead of inches range like mine is and had less than good up close vision like my wife has, I would have problems as well. So maybe I should qualify my recommendation that these work well to, these work well for those people that have perfect vision up close. If you are a farsighted person and have trouble reading without reading glasses you will have trouble seeing this screen. The more that your ideal focal length is capable of seeing at distances of 4 to 5 inches, the better these will work for you.