SVBONY SV550 122 mm ED Triplet APO optical tube (SVBONY, SKU: F9381C). The SV550 122 mm is an apochromatic refractor with an 854 mm focal length and f/7 focal ratio. Its three-element objective includes an FPL51 ED glass element to reduce chromatic aberration. Fine focusing helps set focus precisely for visual observing and astrophotography.
Key features
• item: ED triplet with a 122 mm aperture • fully multi-coated FMC optics and internal baffles • rack-and-pinion 2.5" focuser with 1:10 fine reduction • aluminium tube with a retractable dew shield • item: CNC-machined rings and dovetail rail
Included items
• optical tube: SV550 122 mm • mounting rings • item: Vixen-type dovetail rail measuring 300 mm • finder shoe
Technical specifications
• optical design: apochromatic refractor, ED triplet • low-dispersion glass: FPL51 • aperture: 122 mm • focal length: 854 mm • focal ratio: f/7 • manufacturer-stated limiting magnitude: 12.3 mag • manufacturer-stated resolving power: 1.15" • manufacturer-stated maximum useful magnification: 244× • focuser: rack-and-pinion 2.5", dual-speed 1:10 • focuser travel: 87 mm • camera-side thread: female M63 × 1 • accessory fitting: 2" • tube diameter: 154 mm • tube weight without accessories: approximately 6.44 kg • warranty: 12 months
For imaging, select the camera, connections and any corrector according to the sensor format and intended image field.
I will help you choose the perfect optical equipment.
