SVBONY F90500 SV48P F5.5 refraction professional astronomy OTA astrophotography dual lens

Feature:

• SVBONY astronomical telescope has excellent optical characteristics and high-quality mechanical components.
• Equipped with achromatic glass to achieve a good viewing effect from edge to edge, the full multi-layer green coated lens can maximize the light transmittance and eliminate false colors.
• 2-inch rotatable double-speed focuser, stable operation, good hand feeling and high adjustment accuracy.

Specification:

• Brand: SVBONY
• Model: SV48P
• Optical Design: Refractor
• Caliber: 90mm
• Optical coating: FMC
• Objective lens: doublet air-spaced achromatic design
• Focal length: 500mm
• Focal ratio: F/5.5
• Eyepiece Tube Diameter: 2" (with 1.25" adapter)
• Focuser: 2-inch RAP two-speed focuser
• Millimeter markings on focuser: yes
• 360 Degree Rotatable: Yes
• Dust Plug: One 1.25" Dust Plug Included
• Finder Scope Stand: Yes
• Installation Type: Dovetail Board
• Dovetail length: 130mm
• Net weight: 2730g / 96.3oz
• Package Included:
• 90500 Astronomical Telescopes OTA
• 2" -1.25" Adapter
• Dovetail Slots
• 100mm Dovetail Plate
• Finder Scope Bracket
• Lens Cover
• 1.25" Dust Cover
• General Notes:
• Avoid exposing the telescope to sudden temperature changes, as this can result in fogging of the objective lens as moisture condenses on it.
• If this should happen, place the object lens close, but not too close, to a source of heat and wait for the moisture to evaporate.

Caution:

• Never look directly at the sun with naked eye or with a telescope (unless you have the proper solar filter)
• Adult supervision is recommended when it is for use by children ages under 10 years old