Re: New Televue 13mm Ethos eyepiece

I tried the Ethos at Stellafane. It is wide and sharp and has good eye
relief for non eyeglass wearers. Seems a little too wide for my taste
though. When you put your eye to the eyepiece it's like looking around
a corner to see the edge of the field.

An 8 inch f6 will give about a one degree field. A 16 inch f6 will
give about half degree field. How many objects are large enough to use
the whole field?


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