Sky Rover Optics Premium Flat Field 3.5 mm eyepiece belongs to the PF (Premium Flat Field) series designed to provide a flat field of view and high image quality across the entire field. The optical design reduces edge distortion and ensures high contrast and sharp imaging. With its very short 3.5 mm focal length, this eyepiece is intended for high-magnification observations such as planetary viewing, lunar surface details and resolving close double stars.

Key features

• Premium Flat Field optical design providing a flat field of view
• 3.5 mm focal length suitable for very high magnification observations
• sharp imaging across the entire field of view
• FMC multi-layer coatings improving light transmission
• standard 1.25" barrel interface
• 1.25" filter thread allowing the use of astronomical filters
• foldable eye cup for comfortable viewing

Included in the set

• Sky Rover Optics PF 3.5 mm eyepiece

Technical parameters

• model: Sky Rover PF 3.5 mm eyepiece
• SKU: 21762
• focal length: 3.5 mm
• eye relief: 15 mm
• field stop diameter: 3.9 mm
• optical design: 6 elements in 4 groups
• optical coatings: FMC (Fully Multi-Coated)
• barrel size: 1.25"
• filter thread: 1.25"
• eye cup: folding
• dimensions: 35 × 84 mm
• weight: 115 g