![]() OK, it seems that user21820 is right this effect is caused by both the foreground and the background objects being out of focus, and occurs in areas where the foreground object (your finger) partially occludes the background, so that only some of the light rays reaching your eye from the background are blocked by the foreground obstacle. Especially notice how the grid fails to line up in the bottom two photos. Here are some photos of the side of a 2 mm thick flat opaque plastic object, at different aperture sizes. It worked just as well with my finger closer to the camera, but this happens to be the situation that I measured. ![]() You see the grid deform ever so slightly near the top of my finger. ![]() This time the backdrop is a grid I have on my screen (due to a lack of grid paper). Move your finger gradually through your view and you'll see the background image shift as your finger moves.įor all the people asking, I made another photo. To reproduce: put your finger about 5 cm from your open eye, look through the fuzzy edge of your finger and focus on something farther away. What causes this? Is it the heat from my finger that bends the light? Or the minuscule gravity that the mass in my finger exerts? (I don't think so.) Is this some kind of diffraction? When I close one eye and put the tip of my finger near my open eye, it seems as if the light from the background image bends around my finger slightly, warping the image near the edges of my blurry fingertip.
0 Comments
Leave a Reply. |