SV503 80/102ED Telescope Set for Prime Focus Photography - Connected to M48 Camera Ring
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Key Features
Designed for direct prime focus capture without extra optics, ideal for nebulae and galaxies.
Available in 80 mm and 102 mm ED refractor configurations for flexibility in astrophotography.
Comes with M48 camera ring and multiple adapters for Nikon, Canon, and Sony mounts.
Includes 0.8× focal reducer and guide scope to widen field and improve imaging results.
Equipped with dovetail slots for reliable mounting and balance with astrophotography rigs.
This sv503 set connected for prime focus astrophotography, can give you more playing methods.
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80ED OTA+0.8x Focal Reducer+Guide Scope+Dovetail Slots
102ED OTA+0.8x Focal Reducer+Guide Scope+Dovetail Slots
M48*0.75 Nikon Adapter
M48*0.75 Canon Adapter
M48-NEX Sony Adapter
⚡ Shipped: 72 hrs after ordering (Pre-sale products excluded).
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sv503 prime focus- Connected to M48 Camera Ring photography, also known as direct focus photography, is a method of directly using the telescope to take pictures without adding any optical objects between the telescope and the camera.The main objects of prime focus photography are nebulae, clusters and galaxies.This can be achieved by matching the sv503 set with the M48 camera ring.
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| Model | SV503-F9359A | SV503-F9359B | SV503-F9359D |
| Type | Refractor | Refractor | Refractor |
| ED Glass | S-FPL51 | S-FPL51 | S-FPL51 |
| Coating | SMC | Ultra-wideband coating（SMC） | SMC |
| Aperture | 70mm / 2.75-Inch | 80mm | 102mm / 4.01-Inch |
| Focal length | 420mm | 560 mm | 714mm |
| Focal Ratio | f/6 | F7 | f/7 |
| Type of Focuser | RAP (Rack and Pinion) | 2 inch Dual speed focuser | RAP (Rack and Pinion) |
| Gear Reduction | 1:10 Fine movement | 1:10 | 1:10 Fine movement |
| Model | SV193-W9152A | SV193-W9152B | SV193-W9152D |
| Back focus | 55mm | 55mm | 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 | 273g / 9.63oz / 0.6lb | 273g / 9.63oz / 0.6lb |
| Model | W2370A |
| Length | along the 34mm |
| Width of internal slot | 4.2mm |
| Horizontal length of internal slot | 36.5mm |
| Vertical length of internal slot | 36.5mm |
| Can be fixed | M3-M4 screw |
| Color | Black |
| Weight | 41g |
| L*W*H | 45*40*25mm |
| Model | SV194-W1077B | SV195-W2054B | SV196-W9153C |
| Size | M48*0.75 | M48*0.75 | M42*0.75 |
| Male thread | Nikon F-mount Male | Canon EF-Mount | Female---Sony E-mount Male |
| Material | Metal Aluminum | Metal Aluminum | Metal Aluminum |
| Net weight | 26.3g / 0.93oz | 41.2g | 86g / 3.03oz |
| Model | SV165-W9125A |
| Aperture | 30mm |
| Focal length | 120mm |
| Focal Ratio | F4 |
| Hoop and Mount | Yes |
| Tube travel | 45mm |
| Back Focus Length | 26mm |
| Mount | UNC 1/4-20 |
| Material | Aluminum |
| Surface technology | Sandblasting oxidation |
Telescopes
SV503_User_Manual
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