Objective Lens: 50mm
Focal Length: 200mm
Focal Ratio: f/4
Field of View: 5.7°
Image Inversion: Inverted image
Mounting System: Vixen-style slide-base with 1.25" RotoLock camera holder
Back Focus: Adjustable, with M48 adapter or Rotolock adapter (note: back focus numbers can be reduced by up to 8mm by partly unscrewing the adapter)
Compatibility: Designed for use with William Optics telescopes, compatible with saddle carry handle and Cat Handle bar (handles not included)
Color Options: Available in black anodized and red (#M-G50PB-WR)