|From Lunar Pioneer 7|
A Gibbous 'Paper Moon,' Earth Science Picture of the Day, October 7, 2011, projected through the lens of an 80 cm (31.5 in), f/8 telescope onto a piece of tissue paper, instead of using an eyepiece. This interesting projection allows many observers, rather than just a single viewer, to see the image coming out of the telescope. It also nicely demonstrates the real field of view of a telescope, which is larger than what an eyepiece can cover. Photo taken on August 18, 2011 from Casa del Romano, Italy [Martin Dietzel & Mario Sämisch/EPOD/USRA].