I use this eyepiece with the Nikon Fieldscope 50mm ED Angled Body (part # 8304). The image is sharp throughout the magnification range (13X – 40X with my 50mm ED Fieldscope). Its mechanical build and smooth operation is typical of Nikon’s premium line of optics and accessories. However, the rubber end cap meant to protect the eyepiece is a tad too large and slips off too easily – an oversight that does not really detract from this fine eyepiece.
Pros: High quality optic, excellent mechanically
Cons: Protective eyepiece cover doesn't fit well
This review was written in the old system and had content requirements that are different than reviews written today.