World Leaders in Astronomical Equipments, Education & Services since 2001

SVBONY SV503 Astronomical Telescope 70mm F6 ED Extra Low Dispersion Refractor

Original price was: ₹59,321.19.Current price is: ₹42,372.88. (Ex. GST)-29% OFF

  • Versatile Performance: Equally adapt at astrophotography and visual observation, lets you explore the cosmos with remarkable clarity.
  • Dual-Speed Focusing: The two-speed 2” toothed focusing seat offers a 1:10 deceleration ratio, facilitating precise and accurate focusing for optimal image capture.
  • Advanced Objective Lens: Equipped with an S-FPL51 extra-low dispersion glass ED element, the telescope eliminates chromatic aberration, ensuring the best color correction achievable for an ED doublet lens
  • Optical Precision: The lens undergoes meticulous optical processing and low polishing technology, resulting in a carefully crafted and finely tuned optical system..

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 318mm/ 12.52in short. Included accessories: 2″ to 1.25″ Eyepiece adapter, Dew Shield, Lens Cover, 1.25″ Dust Cover, 150mm Dovetail Plate and Optics Tube Ring. Suitable for shooting sun and moon, landscape scenery, deep space photography.

Available on backorder



Product Name 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 Aluminium
Back Focus Length 90mm
OTA Length 318mm
Dovetail & Ring Yes
Dovetail Length 150mm


SVBONY SV503 70F6 ED Doublet Astronomy Photography Telescope

S-FPL51 glass

Dual-Speed Rack & Pinion Focuser

1:10 focuser

Back Focus 90mm

90mm Back Focus

1.97 Arc-second Resolution

Compatible Adapter 1.25/2inch

1.25/2 inch interface

Metal Hoop With Dovetail

SV503 70ED size


1. The appearance of the telescope is baked with high-end fine-grained paint, with exquisite appearance and delicate feel;
2. The objective lens features an S-FPL51 extra-low dispersion glass ED element, which eliminates chromatic aberration. This results in the best color correction for an ED doublet lens
3. The lens adopts optical processing and low polishing technology, which is carefully carved;
4. The deceleration ratio of the two-speed 2” toothed focusing seat is 1:10, which makes it easy to achieve accurate focus;
5. If the 70ED is matched with a large chip, A possible way is to: The SV193 increases the field of view of the shot, which is sufficient for most DSOs. The stacked image edges may need to be cropped in the post-process to improve image quality.


The Real Shot Image by SV503 70mm ED Telescope

captured by sv503 70ed telescope.jpg

Solar Warning

  • Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
  • Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
  • Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.


World Leaders in Astronomical Equipments, Education & Services since 2001

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