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Astrophotographers generally use two different focal lengths: Short focal lengths for overview photos and extensive deep-sky objects, and long focal lengths for objects which are further away. Our aspherical mirror optics offer the perfect solution for these scenarios.
The VISAC primary mirror (Vixen Sixth-Order Aspheric Cassegrain) is specially designed for astrophotography and provides a fully flat and true-color image over the entire image frame. Thanks to the three-element field corrector in front of the convex secondary mirror, there is no spherical aberration, coma or field curvature. Although the device is designed for astrophotography, it is also suitable for visual observations.
What's Included
| Optical design | Cassegrain Reflector |
| Maximum recommended magnification | 400 |
| Mirror/Lens diam. | 200 mm |
| Focal length and Aperture ratio | 1800 mm f/9.0 |
| Angular resolution | 0.58 arc seconds |
| Focusing system | 2" Rack-and-Pinion Focuser |
| Eyepiece Barrel Diameter | 31.7 mm |
| Visual limiting magnitude | 13.3 (approx., mag) |
| Viewfinder | 7x50 viewfinder, illuminated |
| Dimensions and weight | 232 mm x 600 mm Weight: 6.9 kg |
Vixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:
Vixen Electronic Parts: Limited One Year Warranty
Vixen Mechanical Parts: Limited Two Year Warranty
CA Residents: Prop 65 WARNING(S)
Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
US$40
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