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SV503 ED Telescope-SV193 Focal Reducer / Flattener

SKU: F9359-W9152
US$ 531.99

The SV503 series deep-sky photography set.

This combination is more designed for Electronically Assisted Astronomy (EAA) such as different cameras. 

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Product Name SV503 70F6 ED Astronomy Telescope SV503 80F7 ED Astronomy Telescope SV503 102F7 ED Astronomy Telescope
Type Refractor Refractor Refractor
ED Glass S-FPL51 S-FPL51 S-FPL51
Coating SMC SMC SMC
Aperture 70mm / 2.75-Inch 80mm /3-Inch 102mm / 4.01-Inch
Focal length 420mm 560mm 714mm
Focal Ratio f/6 f/7 f/7
Type of Focuser RAP (Rack and Pinion) RAP (Rack and Pinion) RAP (Rack and Pinion)
Gear Reduction 1:10 Fine movement 1:10 Fine movement 1:10 Fine movement
Resolving capacity 1.97" 1.5" 1.17"
Limit value 11.3 11.6 12.1
Light gathering capacity 100x 130.6x 212x
Max. Useful magnification 140x 160x 204x
Tube weight 3.35kg 3.95kg 5.5kg
Tube outer diameter 88mm 121mm
Tube material Aluminum Aluminum Aluminum
Back Focus Length 90mm 90mm 101.9mm
OTA Length 318mm 465mm 630mm
Dovetail & Ring Yes Yes Yes
Dovetail Length 150mm 137mm 200mm
Model SV193
SKU  W9152A W9152B W9152D
Back focus 55mm
Barrel size M54x0.75 2-inch 2-inch
Threads Standard M48*0.75 M48*0.75 M48*0.75
Lens Structure 3-Elements/3Groups 3-Elements/2Groups 3-Elements/2Groups
Lens Coating FMC FMC FMC
Blackened Lens Edges Yes Yes Yes
Net Weight  273g / 9.63oz / 0.6lb 164g / 5.78oz / 0.36lb 177g / 6.24oz / 0.39lb

1. The popular SV503 series refractor will provide the best optical quality, whether you use it for Deep-Sky Object or Planets, visual or photography;

2. The compatible SV193 reducer will increase the field of view and improve the image flatness, which is essential for deep-sky photography.

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