Recent content by Casper^^

  1. C

    Two lense system - Homemade spyglass.

    Right, thank you. I know that i can calculate the radius with the lensemakers formula, but like you said - not important :p But what is it that provides the sharp image? Why is it that when i look at on object close by (2 m) i need to increase the distance between the lenses (more than 35...
  2. C

    Two lense system - Homemade spyglass.

    Wauv, thanks for quick answer and the welcome ;) Sorry about that - Both lenses are double-convex. (the radius of the sphere is not known) About the ray tracing - My question was more reagarding the theoretical explanation of the lights path through my spyglass. Actualy my assignment is to "1)...
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    Two lense system - Homemade spyglass.

    Hello. This is my first time posting here, so bare with me. I am from Denmark and I am at my final year of what corresponds to Senior High School. I am currently working on a project about "optical instruments" in physics (I was told that our A level corresponded to your applied physics level)...
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