This simulator helps you choose your observation equipment: it allows you to quickly get an idea of what you can see trough an instrument, according to its power.

mm
(5.91")

Lower the lighting of your room. Approach yourself so as to see only the screen when closing one eye.

mm
(5.91")
mm
mm
mm
mm
mm
mm
° (between 30 and 110)
° (enter a value if you want to compare eyepieces with different fields of view)

Is this simulator realistic?