Recent content by xchen2004

I tried to achieve the task with only 2 lenses. I moved the second lens to the left of the right focal point of the first lens. I can indeed obtain a real image. However, after using ABCD matrix to calculate the angular magnification of the system, I found M<1, which means it is a microscope not...

You mean adding a third lens, so the light focuses on the focal point of the third lens, then forms a real image?

Beams are not focused after the second lens. The telescope forms a virtual image. But I need form a real image after telescope to record image on chips.

I know that the Keplerian Telescope produces an inverted virtual image. What modification should I make to generate real images? Will switching the first lens with the second lens change the telescope into a microscope? Thank you!