Professional Cassegrain telescope with 200 mm aperture and flattener for observing and photographing planets, planetary nebula, and other small night sky objects
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.
FEATURES
DELIVERY CONTENT
FIELD OF APPLICATION | |
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Field of application |
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FOCUS GROUP | |
Focus Group |
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PRODUCT FAMILY | |
Product Family | Reflector telescope |
OPTICAL SPECIFICATIONS | |
Optical design | Cassegrain |
Maximum recommended magnification | 400 |
Mirror/Lens diam. | 200 mm |
Focal length | 1800 mm |
Aperture ratio | 9 |
Angular resolution | 0.58 arc seconds |
Visual limiting magnitude (approx., mag) | 13.3 |
Type of coating | coated |
Finderscope | 7 x 50 mm |
GENERAL TECHNICAL DATA | |
Colour | white |
Type of tripod thread | 60 mm |
Transportability | very good |
Eyepiece Barrel Diameter | 31.7 mm |
Dust protection caps | Dust protection caps for front lens and eyepiece holder |