Svbony SV503 Telescope ED 102mm F7 Doublet Refractor for Astronomy - F9359D

SvbonySKU: F9359D

Price:
Sale price$799 CAD
Stock:
In stock: 3 units - Most orders placed by 2PM EST will be shipped out the same day (weekdays)

Customer Reviews

Based on 3 reviews
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M
Mark Davis
Svbony SV503 ED102mm F7 refractor

I've finally had some good viewing conditions with this refractor, and I am very impressed with it. Its a quality telescope with an excellent textural paint finish, a smooth focuser and a very effective dew shield.
I weighed the OTA (including mount rings and a metal rdf base), on two digital scales several times and consider its weight is closer to 4 kg, which is significantly less than that the 5.5 kg given by Svbony. This is a great bonus for portability.
When objects are perfectly in focus, CA is negligible, and stars are pin-point sharp. With very good seeing I have been able to use magnifications up to 238 X for globular clusters, despite the nearby city light glow. Good clarity views are regularly achievable with magnifications of 120 - 170 X, where they would not be with my 4" F6 chromatic refractor. My eyepieces are of reasonable quality, but they are not premium ones.
In summary, I could not be happier with this telescope. It really is a great choice as an affordable, quality, portable refractor for visual use.

m
moise bosse

Svbony SV503 Telescope ED 102mm F7 Doublet Refractor for Astronomy - F9359D

J
James MacWilliam
Wow!

I have had the 102 ED out under the stars 3 times so far and I can say I am shocked at how good the scope is. There is no CA visually on The Moon, Jupiter or Saturn. Video shot through the scope with my cell phone does show CA. I bought this scope for visual and to replace my 120 mm Achromat. It's an amazing upgrade with its excellent 2 spd, rotatable focuser and sharp views above (223x) its theoretical maximum (200x). The sliding dew shield and 3 point end ring on the focuser show attention to detail. So far, the scope is the best built refractor I have owned, even matching my Explore 127ED for build quality. I can't wait to look at wide field star clusters and nebulae with the 102 ED.

Description

Highlights

  • Rugged housing prevents damage
  • Responsive and soft dual-speed focuser
  • ED glass (S-FPL51) can produce very beautiful and clear images
  • The fully multilayer-coated lens eliminates all reflections on the glass, and has little or no chromatic aberration at high magnification

The appearance of the telescope is baked with high-end fine-grained paint, with exquisite appearance and delicate feel.

The objective lens features a S-FPL51 extra-low dispersion glass ED element which virtually eliminates chromatic aberration. This results in the best color correction for an ED doublet lens.

The lens adopts optical processing and low polishing technology.

The ratio of the two-speed 2'' toothed focusing seat is 1:10, which makes it easy to achieve accurate focus.

Includes metal rings and a 2'' to 1.25'' adapter.

SV503 102ED OTAS-FPL51 glass1:10 Focuser90mm Back FocusSV503 102ED Resolution1.25/2 inch interfaceMetal Hoop with DovetailDragon Head Nebula

 

Specifications

Product Name SVBONY SV503 102F7 ED Astronomy Telescope
Type Refractor
ED Glass S-FPL51
Coating SMC
Aperture 102mm / 4.01-Inch
Focal length 714mm
Focal Ratio f/7
Type of Focuser RAP (Rack and Pinion)
Gear Reduction 1:10 Fine movement
Resolving capacity 1.17"
Limit value 12.1
Light gathering capacity 212x
Max. Useful magnification 204x
Tube weight(with rings) 5.5kg
Tube outer diameter 121mm
Tube material Aluminum
Back Focus Length 101.9mm
OTA Length 630mm
Dovetail & Ring Yes
Dovetail Length 200mm
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