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Askar 200mm Focal Length Terrestrial / Astrophotography Camera Lens # ACL200

$ 374.35

Availability: 100 in stock
  • Brand: Askar
  • All returns accepted: Returns Accepted
  • Type: Lenses
  • Focal Length: 200mm
  • Item must be returned within: 30 Days
  • Return shipping will be paid by: Buyer
  • Condition: New
  • MPN: ACL200
  • Refund will be given as: Money Back

    Description

    ASKAR 200mm Focal Length Terrestrial / Astrophotography Camera Lens # ACL200
    ACL 200mm F/4 Lens Features:
    1. This 200mm focal length professional camera lens for astrophotography is a world first, features the appearance and structure of a standard camera lens. Its integral design offers a compact, lightweight and easy to use optical system.
    2. This lens is carefully designed to optimize the quality of the image and create optimal performance. Straightforward and easy to use.
    3. Excellent for the elimination of chromatic aberration. no need to worry that the chromatic halo in a photograph caused by normal camera lens and telescope.
    4. Full frame photography and flat-field correction supported, it effectively corrects for chromatic aberration and produces superb images.
    5. For astrophotography, this is  F/4 is a fast focal ratio, which can effectively shorten the exposure time and reduce the burden of maintaining critical tracking accuracy of an equatorial mount for an extended period of time.
    6. For astrophotography, it adopts two focus modes: One is a coarse adjustment (Helical Focuser), the other is 1mm micro adjustment making critical focus.
    7. For landscape photography, it is optical optimized designed features F/4 -- F/22 aperture,thus it can be used for astrophotography and landscape either simultaneously or overlapping. The shortest focusing distance is 3 meters.
    Specifications:
    Focal Length: 200mm
    Minimum Aperture: f/22
    Aperture Blades: 10 pieces
    Lens Construction: Six elements (three groups of two) including two ED elements
    Closest Focusing Distance: About 3m
    Focus Mode: Manual Focus
    Focus Type: Precise focusing and rough focusing
    Micro-motion distance: 1mm
    Filter Diameter: 82mm
    Maximum Diameter and Length: About 100x195mm
    Weight: 1.5kg
    Made in China
    This is a brand new item; New, Never used.