SvBony eyepiece set 68 deg for less than $40
https://www.ebay.com.au/itm/SVBONY-3...item2812e3be3e
I thought I read somewhere (SGL?) that these used plastic lens "Aspherical"
https://www.cloudynights.com/topic/5...-23m-aspheric/
but the blurb says "Fully multi-coated glasses for excellent image contrast and light transmission"......don't know.
Has anyone tried these??