• High-Quality Optics: SV503 Telescope’s objective lens features an S-FPL51 extra-low dispersion glass ED element, which virtually eliminates chromatic aberration;
• Doublet Air-Spaced Achromatic Design: The 2-element objective lens provides sharp and high-contrast images for travel and mobile use;
• 2-Inch Rack and Pinion: The 2 inch RAP focuser securely holds heavy photographic accessories, providing smooth and precise focusing;
• Versatile for All Users: While perfect for experienced observers, the SV503 is also an excellent choice for beginners, offering authentic, high-quality images for more discerning astronomers;
• Area of application: You can apply SV503 OTA to astrophotography, moon,nature observation, nebulae and galaxies.

Note: The SV503 70ed is designed with f/6 focus ratio. When reducing the focus further, the image quality will not be guaranteed. This is why 0.8x flat field is not available. 

 

SVBONY SV503 70F6 ED Doublet Astronomy Photography Telescope

 

Dual-Speed Rack & Pinion Focuser

Back Focus 90mm

1.97 Arc-second Resolution

Compatible Adapter 1.25/2inch

Metal Hoop With Dovetail

 

Specifications

Product Name	SVBONY SV503 70F6 ED Astronomy Telescope
Type	Refractor
ED Glass	S-FPL51
Coating	SMC
Aperture	70mm / 2.75-Inch
Focal length	420mm
Focal Ratio	f/6
Type of Focuser	RAP (Rack and Pinion)
Gear Reduction	1:10 Fine movement
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	Aluminum
Back Focus Length	90mm
OTA Length	318mm
Dovetail & Ring	Yes
Dovetail Length	150mm