Yes, a telecentric lens can be used with an afocal telescope. In fact, using a telecentric lens can improve the image quality and reduce distortion in the final image.
The purpose of using a telecentric lens is to ensure that the light rays entering the telescope are parallel to each other. This helps to minimize aberrations and improve the overall image quality.
Yes, there are some limitations to using a telecentric lens with an afocal telescope. The telescope must have a large enough aperture to accommodate the telecentric lens, and the lens must be properly aligned with the telescope to achieve the desired results.
No, not all telecentric lenses are compatible with all afocal telescopes. It is important to check the specifications and compatibility of both the lens and telescope before attempting to use them together.
Aside from improving image quality and reducing distortion, using a telecentric lens with an afocal telescope can also increase the magnification of the final image. This can be especially useful for observing small or distant objects.