Recent content by iansmith6

  1. I

    Help with my large mirror and camera.

    I'm not really sure what I am asking for, I have been trying so many variatons of cameras and lenses and setups. :-) Here are some diagrams showing the problem with trying to photograph the reflected light. So I need to stop the light from spreading out so fast. Something that would...
  2. I

    Help with my large mirror and camera.

    This isn't homework, I really have this setup. :-) I have an 18" mirror with an 80" focal length. The light from a point light source at twice that distance (and offset to the side slightly) bounces it's beams off the mirror and back to form a perfect image of itself next to the light if you...
  3. I

    Are Neodymium Magnets Polarized and Shaped Like This?

    Weird. Why buy them if you can't get near them, indeed. However, some large magnets are very dangerous. I own several that could break your fingers if you let them get between a pair. And even small magnets that look harmless can give you a nasty pinch and resulting blood blister or...
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