Vixen Flattener HD Kit for FL55SS

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Products

Vixen Flattener HD Kit for FL55SS

37252

  • $638.50

Upgrading the FL55SS to F5.7 Astrograph of high performance.

This kit consists of a high performance flattener lens and a connecing tube ring. It improves image quality of photography by achieving a flat focal plane and allows you to enjoy a high level of prime focus astrophotography. The flattener lens corrects aberration on the periphery of a photographic field of view and it keeps images of stars sharp throughout the photographic field.

Enquire for more information or email us specifics at sales@astro.com.sg.

Vixen Flattener HD Kit for FL55SS Description

  • Sharp star images throughout a photographic field of full frame DSLR cameras.

    The flattener HD for FL55SS improves off-axis image quality greatly with a minimum change of the focal length. It secures an image circle of 44mm that covers imaging sensors of full frame DSLR cameras.

  • A minimum loss of light toward the edge of photographic field. A 96% of rich illuminated field of view is adequate for the full-size imaging sensors.

    Generally astrophotographers are annoyed with the drop-off of light toward the edge of illuminated field of view when taking faint deep-sky objects with a telephoto lense or dedicated astrophoto instrument. Although this may be corrected by complicated image processing on a PC, it all depends on the image quality of an original photograph. The flattener HD kit solves this problem as it works to keep a large 96% illuminated field of view at the very edge of a 44mm image circle. You will feel no hint of light loss if used with a full frame DSLR camera. Astrophotography of nebulae and star clusters are fun with the flattener HD Kit.

  • Illuminated field of view at the edge of photographic field.

    96% with use of DSLR cameras with the full frame size of imaging sensors. 99% with use of DSLR cameras with the APS-C size of imaging sensors.

  • Comparision in light loss between the FL55SS with the flattener HD lens and a standard telephoto lens or astrograph.

    FL55SS with the flattener HD lens

    Standard telephoto lens or astrograph

  • Ultimate light transmission coatings for extremely high contrast images.

    The same anti-reflection AS coatings that are used for our high-end VSD100F3.8 renowned for extremely high light transmission (99.9% per surface) are provided on each of the lens surfaces fo the flattener HD lens. Besides, elaborate matte-finishes are given to eliminate internal reflections and loss of light completely.

  • Sample images "Veil Nebula"

  • Setup configurations

Flattener HD Kit for FL55SS

  • Applicable to
    FL55SS optical tube assembly
  • Effective focal length
    300mm to 312mm
  • Magnification
    1.04x
  • Focal ratio
    F5.5 to F5.7
  • Image circle
    44mm in diameter
  • Illuminated field of view
    96%
  • Optical construction
    2 elements in 1 group
  • Optical coatings
    AS coatings (More than 99.9% light transmission per surface)
  • Dimensions
    58mm dia. x 30mm long
  • Weight
    107 g
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EX Tube 66

  • Dimensions
    68mm dia. x 76mm long
  • Weight
    89 g