drafting tables
televue eth170 eth 17.0 ethos 17mm 2 inch eyepiece
a 100 & 176 ; apparent field of view is a truly astounding number by any astronomical standard . given that your minds eye can concentrate upon approximately 50 & 176 ; of a viewing field at once doubling that amount results in a view that you could feel like youre just falling into . for any given magnification an ethos will show a whopping 50 % more sky than the previous widest oculars . sharpness is inherent to the ethos optical design and contrast is maximized through intelligent use of flat baffle
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