Apogee 3.6mm Super Easy View Ocular in excellent condition.
Crisp and contrasty quality orthoscopic performance with good eye relief.
Its five lens system design is similar to that of an orthoscopic and includes a negative meniscus transfer lens that produces an extremely high contrast image using special glass to reduce light scattering.
The excellent light throughput, sharpness and contrast of this innovative design is impressive. See the highly laudatory Cloudy Nights Review of the 9.5mm version. This is every bit as good, and it is an excellent high power planetary eyepiece.
New, about $120 plus shipping.
$80 shipped Conus.