SVBONY SV503 Telescope, 70ED F6 Extra Low Dispersion Refractor OTA, Micro-Reduction Rap Focuser, for Astrophotography

This SV503 70F6 ED refractor is an ideal telescope the telescope weighs only about 2.22 kg and thanks to the retractable dew cap it is only 301mm/ 11.85in short. Included accessories: 2" to 1.25" Eyepiece adapter, Dew Shield, Lens Cover, 1.25" Dust Cover, 150mm Dovetail Plate and Optics Tube Ring. ED objective lens SV503 objective lens uses ultra-low dispersion lens; ED material can effectively correct the dispersion; the image is closer to the true color; thus achieving the ideal imaging effect. Dovetail plate SV503 telescope comes with 1 pair telescope tube ring.It can be fixed to the dovetail slot by a dovetail plate.Stable connection of theodolite and tripod. Focusing seat with precise scale SV503 has precise graduations; which is ideal for astrophotography and allows precise focusing. 1:10 micro-reduction Dual speed focusing system;The gear ratio of the dual speed 2-inch toothed focuser with a reduction ratio of 1:10; a combination of constant-speed and fine-speed ; Easy to achieve precise focus. Specifications of Optics: Type: Refractor Type of build: Doublet air spaced achromatic Glass Grades: S-FPL51 Aperture: 70mm / 2.75-Inch Focal length: 420mm Aperture ratio: f/6 Resolving capacity: 1.97" Limit value: 11.3 Light gathering capacity: 100x Max. Useful magnification: 140x Tube weight: 2.22kg Tube outer diameter: 88mm Tube material: Aluminium Coating: 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: 1x SV503 70F6 ED Astronomical Telescopes OTA 1x Pair Telescope Tube Ring 1x 2" -1.25" Adapter 1x Dovetail Plate 1x Lens Cover 1x 1.25" Dust Cover