Amazing planet,lunar and deepsky views. See the review comparing this top shelf eyepiece with the best! Like our D21s, the D14s are measured and matched to 1/100th optical focal length, typically 15.2mm. Why not have the best Planet/Lunar eyepieces on OUR planet? They become THREE pair with the Binotron 27 Power Switch too. Add at the time of your Binotron 27 order and we test, match and USE the D14s to build your Binotron 27 System for a tight sealed and perfect optical system.
Review Link
 
Specifications:
Available Focal Lengths: 21mm & 14mm
1.25" Eyepiece Barrel format
65 degree AFOV
Fully Multi-Coated on all air to glass optical surfaces for ultra-high-efficiency transmission
High Index Japanese Glass utilized
20mm Eye-relief
Black anodized aluminum housings and barrels with rubber knurl
Laser engraved logo
Rotating batwing Eye-Guards
Weight: D21s: 8 oz each  D14s:9 oz each
Full one-year warranty