SVBONY 102MM F/7 APO DOUBLET(F9359D)

The SVBONY SV503 102F7 ED is a doublet refractor built around an S-FPL51 extra-low dispersion objective that virtually eliminates chromatic aberration, delivering crisp, high-contrast views of the Moon, planets and deep-sky objects. With its 102mm aperture and 714mm focal length, it is a capable instrument for both demanding visual observation and astrophotography.

Features

• S-FPL51 ED glass: extra-low dispersion objective element that virtually eliminates chromatic aberration.
• Doublet APO design: 2-element objective delivering sharp, high-contrast images.
• SMC coating: ultra-wideband multi-coating for superior contrast and clarity.
• 2-inch dual-speed focuser: rack and pinion (RAP) focuser with 1:10 fine movement for accurate focusing under heavy accessories.
• Generous back focus: 101.9mm of back focus to accommodate reducers, flatteners and imaging trains.
• Metal rings with dovetail: CNC-machined mounting rings and 200mm Vixen-style dovetail for stable support.

Specifications

• Type: Refractor
• ED glass: S-FPL51
• Coating: SMC
• Aperture: 102mm / 4.01 in
• Focal length: 714mm
• Focal ratio: f/7
• Focuser: RAP (rack and pinion), 1:10 fine movement
• Resolving power: 1.17 arc-seconds
• Limiting magnitude: 12.1
• Maximum useful magnification: 204x
• Back focus: 101.9mm
• Tube length: 630mm
• Tube outer diameter: 121mm
• Tube material: Aluminum
• Tube weight (with rings): 5.5 kg
• Dovetail and rings: Yes, 200mm dovetail