SVBONY SV503 102F7 ED Refractor Telescopes OTA SMC Astronomical RAP Focuser

Description

Main features:
The 102mm F/7 Extra-Low Dispersion refractor is portable telescope for observing and astrophotography. The very well corrected optics with moderate focal ratio and special glass offers an almost color-free image.
Ultra-wideband coating: On every glass/air surface, we use the best multi-coating to ensure maximum contrast.
Stable and precise 2" RAP focuser holds heavy photographic accessories safe, 360° rotation.
The 1:10 micro-reduction is ideal for astrophotography and allows precise focusing.
Recommended for Advanced: Telescopes for experienced observers, but also for ambitious beginners.
Area of application: Astrophotography
Included accessories: 2" to 1.25" Eyepiece adapter, Dew Shield, Lens Cover, 1.25" Dust Cover, 200mm Dovetail Plate and Optics Tube Ring.
Specifications:
Optics
Type: Refractor
Type of build: Doublet air spaced achromatic
Glass Grades: S-FPL51
Aperture: 102mm / 4.01-Inch
Focal length: 714mm
Aperture ratio: f/7
Resolving capacity: 1.17"
Limit value: 12.1
Light gathering capacity: 212x
Max. Useful magnification: 204x
Tube weight: 3.95kg
Tube outer diameter: 121mm
Tube material: Aluminium
Coating: SMC
Focuser:
Type of build: RAP ((rack and pinion)
Connection: 2-inch
Connecting threaded socket: M54*0.75
Ring clamp: Yes
Rotating
：
Yes
Gear reduction: 1:10 Fine movement
The packaging includes:
SV503 102F7 ED Astronomical Telescopes OTA
Pair Telescope Tube Ring
2" -1.25" Adapter
Dovetail Plate
Lens Cover
1.25" Dust Cover
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