Fein Optic Widefield 10x Focusable Eyepieces Paired

Fein Optic focusable, high-eyepoint, Widefield 15x eyepieces, paired. FN = 16. Fits 30mm inside diameter eyetube. Widefield 15x eyepiece accepts a 24mm diameter reticle. For use with...

Fein Optic focusable, high-eyepoint, widefield 20x eyepieces, paired. FN = 12. Fits 30mm inside diameter eyetube. For use with Fein Optic FZ6 and FZ12 Stereo Microscopes.

Super widefield focusing single 10x eyepiece, FN = 21mm. Eyepiece has 25mm reticle mount.  

Widefield 10x, 15x, or 20x eyepieces, paired. 30.5mm diameter. For use with National Optical models: 400 Series 405 Series 409 Series 410 Series 411 Series 415 Series 416 Series 417 Series 420...

Single SWH 10x-F focusing eyepiece with reticle mount (does not include reticle). FN = 22. Tube O.D. 30mm. Accepts optional 25mm diameter reticle.