SV503 Telescope Set for Prime Focus Photography - Connected to M42 Camera Ring
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Key Features
Capture nebulae, clusters and galaxies by connecting your camera directly at prime focus with no extra optics.
Choose between 80 mm, 70 mm and 102 mm ED refractor optical tubes for imaging flexibility.
Comes with M42 *0.75 adapters for Nikon, Canon, Sony and T2-NEX for broad camera compatibility.
Includes T-adapter mount and dovetail slots for secure attachment to your tracking mount.
Set includes a guide scope to support auto-guiding for longer exposures and improved tracking.
SV503 prime focus 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 M42 camera ring.
SV503 102ED OTA+T Adapter Mount+Dovetail Slots+Guider Scope
SV503 80ED OTA+T Adapter Mount+Dovetail Slots+Guider Scope
M42*0.75 Nikon Adapter
M42*0.75 Canon Adapter
⚡ Shipped: 72 hrs after ordering (Pre-sale products excluded).
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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 | 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 |
| Weight | 41g |
| L*W*H | 45*40*25mm |
| Model | SV165 |
| Aperture | 30mm |
| Focal length | 120mm |
| Focal Ratio | F4 |
| Tube travel | 45mm |
| Back Focus Length | 26mm |
| Mount | UNC 1/4-20 |
| Model | SV194-W1077A | SV195-W2054A |
| Size | M42*0.75 | M42*0.75 |
| Male thread | Nikon F-mount Male | Canon EF-Mount |
| Material | Metal Aluminum | Metal Aluminum |
| Net weight | 31g / 1.05oz | 44.7g |
| Model | SV196-W9153A | SV196-W9153B |
| Size | M42*0.75 | M42*0.75 |
| Male thread | Female---SONY A-mount Male | Female---Sony E-mount Male |
| Material | Metal Aluminum | Metal Aluminum |
| Net weight | 35.7g / 1.26oz | 68.3g / 2.4oz |
| Thickness | 10mm | 36.5mm |
Telescopes
SV503_User_Manual
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