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Starizona HyperStar 6 v4

SKU STZ-HS4-C6
Original price $499.00 USD - Original price $628.00 USD
Original price
$499.00 USD
$499.00 USD - $628.00 USD
Current price $499.00 USD
Price Match Policy!
  • Converts a Celestron C6 SCT into an f/1.9 astrograph
  • 300 mm focal length provides a massive 4.1° field of view
  • 25× faster than the telescope's native f/10 focal ratio
  • Supports sensors with up to a 28 mm diagonal
  • Independent camera rotation for easy framing
  • Weighs less than 1 lb
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Framing Simulator
Framing SimulatorInstant FOV Preview

Preview your camera's FOV

See exactly how your targets fit with the Starizona HyperStar 6 v4, on real sky survey data.

Launch Imaging Assistant
Vignetting Calculator

Will your imaging train vignette?

Check which filter and adapter sizes clear the sensor with the Starizona HyperStar 6 v4, and how much light the corners lose.

Check vignetting
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty
  • HyperStar 6 v4

    The HyperStar 6 v4 lens assembly replaces the secondary mirror on a Celestron C6 SCT, converting it into an incredibly fast f/1.9 imaging system with a 300 mm focal length. This 25× increase in light-gathering speed allows you to capture deep-sky objects with drastically shorter exposures, while its optical design delivers a coma-free, flat field of view up to 4.1° wide. The system is optimized for modern astronomy cameras, accommodating sensors up to 28 mm in diagonal.

    f/1.9 Imaging: Capture Data 25x Faster on a C6

    By converting your C6 to an f/1.9 optical system, the HyperStar 6 reduces exposure times by a factor of 25 compared to imaging at the native f/10. An object that requires a 5-minute exposure at f/10 is fully captured in just 12 seconds at f/1.9. This speed makes unguided, short-exposure imaging possible from a simple alt-azimuth mount, eliminating the need for an equatorial wedge or autoguiding setup for many targets.

    A 4.1° Coma-Free Field for Sensors up to 28mm

    The HyperStar 6's fully multi-coated optics are engineered to produce a flat, coma-free image circle that illuminates sensors up to 28 mm in diagonal. This creates an expansive 4.1° true field of view, allowing you to frame enormous targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000) in a single shot. Stars remain sharp and point-like to the edge of the frame, a critical attribute for producing high-quality wide-field images.

    Mechanical Integration: Camera Adapters, Rotation, and Filter Options

    Weighing less than 1 lb, the HyperStar 6 is a lightweight addition to your C6. It features independent camera rotation, allowing you to frame your target without altering focus or collimation. The standard camera adapter includes M42 male threads for connecting to most popular astronomy cameras.

    • Filter Use: The standard adapter accepts a single 2-inch mounted filter. For imagers who need to swap between multiple filters without removing the camera, an optional Filter Slider is available which utilizes both M42 and M54 male threads.
    • Collimation: The HyperStar lens is fully adjustable, allowing you to precisely align the optical system for optimal edge-of-field performance.
  • What does imaging at f/1.9 with the HyperStar 6 really mean?

    Imaging at f/1.9 means your telescope gathers light 25 times faster than at its native f/10. This dramatically shortens exposure times, allowing you to capture faint details in seconds rather than minutes. It makes capturing high-quality images without autoguiding or an equatorial mount entirely feasible.

    What cameras are compatible with the HyperStar 6 out of the box?

    The HyperStar 6 includes an adapter with standard M42 male threads, designed for cameras that have 17.5 mm of back focus. This covers many popular one-shot-color and monochrome astronomy cameras. If your camera has different thread or spacing requirements, other adapters are available separately.

    How does the HyperStar 6 perform on a large target like the Andromeda Galaxy (M31) with a C6?

    The HyperStar 6 is ideal for a target like M31. Its 4.1° field of view is wide enough to capture the entire galaxy, including its faint outer arms and satellite galaxies M32 and M110, in a single frame. The fast f/1.9 optics will reveal faint dust lanes and structure with very short sub-exposures.

    Can I use filters with the HyperStar 6?

    Yes. The standard camera adapter that ships with the HyperStar 6 has threads to accept one 2-inch mounted filter. For those needing to switch between multiple filters during an imaging session, such as for LRGB or narrowband imaging, an optional Filter Slider is available as an upgrade.

    Is it difficult to switch between using the HyperStar 6 and visual observing?

    Switching is straightforward. You simply unthread the HyperStar 6 assembly from the front of the C6 and reinstall the telescope's original secondary mirror. The process typically takes only a few minutes, allowing you to easily convert your telescope from a wide-field astrograph back to a high-magnification visual instrument.

    Will I need to collimate the HyperStar 6?

    Yes, like any high-performance optical system, the HyperStar 6 has adjustable collimation. Fine-tuning the collimation is essential for achieving the sharpest possible stars across the entire flat field, especially given the critical tolerances of an f/1.9 system. The adjustment is made using small screws on the HyperStar body.

  • Model HyperStar 6 (C6 v4)
    Compatible Optical Tubes Celestron C6 SCT
    Focal Ratio f/1.9
    Focal Length 300 mm
    Speed Increase 25× faster than stock f/10
    Field of View Up to 4.1° — coma-free, flat field
    Max Sensor Size 28 mm
    Camera Rotation Independent
    Collimation Adjustable
    Optical Coatings Fully Multi-Coated
    Optional Filter Slider Threads Both M42 male and M54 male
    Length 2.3" (without camera adapter)
    Diameter 2.8"
    Weight Less than 1 lb
    Finish Black Anodized
    Country of Manufacture Made in U.S.A.
    • HyperStar 6 Lens Assembly

      × 1

    • Camera Adapter with M42 Male Threads

      × 1

  • Starizona Warranty