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SV503 102 ED Telescope -SV193 Field Flattener/Reducer for Photography

SKU: F9359D-W9152D-W9163B-W9125B-W2370A-W9132D-W2381AB
-22% US$ 699.99
List Price: US$ 908.99

1.Rugged housing prevents damage;

2.Sliding graceful and soft dual-speed focuser;

3.Ed glass (FPL51) can produce very beautiful and clear images;

4.The fully multilayer coated lens eliminates all reflections on the glass, and it has little or no chromatic aberration at high magnification.

Looking for more info on attaching the 0.8x reducer/flattener to the SV503 102mm ED? You can refer to this link:

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                     SVBONY SV503 Astronomical Telescope 102mm F7 ED Refractor OTA

                                            ED Extra Low Dispersion Glass

S-FPL51 glass

                                           Dual-speed Rack & Pinion Focuser

1:10 Focuser

                                                      90mm Back Focus

90mm Back Focus

                                              1.17 Arc-second Resolution

SV503 102ED Resolution

                                                Compatible With 1.25"/2" Adapters

1.25/2 inch interface


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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


  1. 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

The Real Shot Image by SV503 102mm OTA

picture capture by sv503 102ed.jpg

The Bundle Set of SV503 102mm by Our Clients

sv503 102.jpg

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