Quote:
Originally Posted by Wavytone
I appreciate that well Bill, hence why I am toying with the idea of making a ball eyepiece (one element, 1 group) sure the field is small, and an off axis Newtonian (just one reflecting surface). Already have the mirror
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I've made two of those for me. Yes the on-axis that is sharp is about 10 degrees...but the contrast in those 10 degrees is unbelievable!!