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 contrast.
The VC 200L 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 elaborate 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 piggy-back camera holder. You can take photos both through the telescope and using a telephoto lens parallel to the main instrument or you can use the VC200L for guiding while the camera sits on top.
Pair this with Vixen's Sphinx SXD Mount with the STAR BOOK hand controller and you have a system designed with Astrophotographers in mind. The SXD Mount equipped with thrust bearings, achieves an increased loading capacity of 50 pounds. The smooth RA and DEC axes provide increase your viewing experience.
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