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Description
Vixen's unique catadioptric design features a high precision sixth order aspherical primary mirror, a convex secondary mirror and triplet corrector lens. VISAC is an abbreviation for Vixen's Six-Order Aspherical Cassegrain. The primary mirror is held by a retaining ring, instead of hooks to decrease flare and enhance constrast. The VC200L is an 8" f/9.0 highly corrected, highly specialized telescope for astro imaging. The VISAC provides high-definition star images to the edge of a wide viewing field and offers exceptionally outstanding performance in astrophotography. Even at the edge of the 35mm film format (larger CCD chips) stars are sharp (smaller than 15 micrometers). This is smaller than the resolution of fine quality CCD cameras, which means that the telescope does not limit the image quality. With its eleborate aspherical optical design it achieves an excellent image correction throughout the large illuminated field (42mm diameter fully illuminated). With the f/6.4 reducer you get much shorter exposure times. The reducer is a highly recommended optional accessory. The basic configuration includes a pigge-back camera holder. You can take photos both through the telescope and using a telephoto lens parrallel to the main instrument or you can use the VC200L for guiding while the camera sits on top.
Vixen 5831 VMC260L Optical Tube Assembly only for SXD mount
Current Price
$3 499
Average
$3 162.44
Min Price
$2 857.81
Max Price
$3 499
Price dynamics
10%
Description
Vixen's unique catadioptric design features a high precision sixth order aspherical primary mirror, a convex secondary mirror and triplet corrector lens. VISAC is an abbreviation for Vixen's Six-Order Aspherical Cassegrain. The primary mirror is held by a retaining ring, instead of hooks to decrease flare and enhance constrast. The VC200L is an 8" f/9.0 highly corrected, highly specialized telescope for astro imaging. The VISAC provides high-definition star images to the edge of a wide viewing field and offers exceptionally outstanding performance in astrophotography. Even at the edge of the 35mm film format (larger CCD chips) stars are sharp (smaller than 15 micrometers). This is smaller than the resolution of fine quality CCD cameras, which means that the telescope does not limit the image quality. With its eleborate aspherical optical design it achieves an excellent image correction throughout the large illuminated field (42mm diameter fully illuminated). With the f/6.4 reducer you get much shorter exposure times. The reducer is a highly recommended optional accessory. The basic configuration includes a pigge-back camera holder. You can take photos both through the telescope and using a telephoto lens parrallel to the main instrument or you can use the VC200L for guiding while the camera sits on top.
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