- Am 12.07.2011 23:02, schrieb Christian Bloch:
> Actually, I think the projection screen is the strongest point. ItThey could still use the real image instead of a screen, but I suspect
> simulates a larger sensor. Otherwise, if the lens would refocus
> directly into the tiny lens, you would not get the shallow depth of
the optics would be too complicated or too large in this case. In a
Kepler telescope the ocular is a magnifier to view the real image...