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Starizona T-Adapter with Filter Holder for EdgeHD 8
Starizona T-Adapter with Filter Holder for EdgeHD 8
Starizona T-Adapter with Filter Holder for EdgeHD 8

Starizona T-Adapter with Filter Holder for EdgeHD 8

by Starizona
SKU STZ-TAFH-HD8
CA$140.00 - CA$140.00
CA$140.00
CA$140.00 - CA$140.00
CA$140.00
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  • Designed specifically for the Celestron EdgeHD 8 telescope
  • Dual-length configuration supports 133.35mm (f/10) and 105mm (f/7 reducer) backfocus
  • Integrated holder for adding a filter into the optical path
  • Provides exactly 55mm of remaining backfocus for your camera and accessories
  • Standard T-thread camera attachment
1 in stock
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Starizona T-Adapter w/Filter Holder for EdgeHD 8

    The Starizona T-Adapter for the Celestron EdgeHD 8 solves critical spacing and filtration challenges in a single component. It features a dual-length configuration to precisely achieve either the 133.35mm backfocus required for native f/10 imaging or the 105mm backfocus needed when using the Celestron f/7 focal reducer. In both setups, this adapter consumes the correct amount of optical path to leave a standard 55mm of remaining backfocus for your camera and accessories.

    Dual Backfocus for Your EdgeHD 8: 133.35mm at f/10 or 105mm at f/7

    Achieving the correct backfocus is non-negotiable for the flat field of an EdgeHD optical system. This adapter is purpose-built for the EdgeHD 8, offering two distinct mechanical configurations. Use the longer setup for native f/10 imaging to meet the 133.35mm requirement, or switch to the shorter setup when using Celestron's f/7 focal reducer, which requires a 105mm total backfocus.

    Integrated Filter Holder: Simplify Your Imaging Train

    Unlike a standard T-adapter, this Starizona model includes an internal filter holder. This lets you place a filter directly in the adapter, without a separate filter drawer or wheel.

    Standardized 55mm Backfocus: T-Thread Connection for DSLRs and Cooled Cameras

    By precisely managing the optical path, the adapter leaves you with exactly 55mm of backfocus, regardless of whether you're at f/10 or f/7. This 55mm distance is the industry standard for DSLR cameras (with a T-ring) and is a common target for cooled astronomy cameras when used with off-axis guiders or other accessories. The camera side takes T-thread accessories such as T-rings and T-thread spacers.

  • What telescopes does the Starizona T-Adapter with Filter Holder fit?

    This model (TA-HD8-F) is designed for the Celestron EdgeHD 8 optical tube. Starizona makes a separate T-Adapter with Filter Holder for the EdgeHD 9.25, 11 and 14 and the standard C11 and C14.

    How does this Starizona T-Adapter work for both f/10 and f/7 imaging on my EdgeHD 8?

    The adapter has two mechanical length configurations. One is set for the native 133.35mm backfocus of the EdgeHD 8 at f/10. The other, shorter configuration is used with the Celestron f/7 focal reducer to achieve its required 105mm backfocus. In either setup, it leaves 55mm of usable backfocus for your camera.

    What accessories can I use in the 55mm of backfocus provided by the Starizona adapter?

    The standard 55mm backfocus is ideal for several common setups: A DSLR camera with a standard T-ring, a cooled CMOS/CCD camera combined with an off-axis guider (OAG), a cooled camera with a thin filter wheel or drawer, or a cooled camera with T-thread extension tubes to reach the correct spacing.

    What size filter does the Starizona T-Adapter's filter holder accept?

    Starizona does not state the filter size for the EdgeHD 8 version. Ask us before ordering if you need to confirm which filters it takes.

    Do I need other parts to attach my Canon or Nikon DSLR to the Starizona T-Adapter?

    Yes. The adapter takes T-thread (M42x0.75) accessories on the camera side. To attach a DSLR, you will need a T-ring specific to your camera's lens mount (e.g., Canon EOS or Nikon F-mount). T-rings are sold separately.

    Can I use a dedicated astronomy camera with the Starizona T-Adapter for the EdgeHD 8?

    Absolutely. Most cooled astronomy cameras have a native backfocus much shorter than 55mm (e.g., 6.5mm, 17.5mm). You will use T-thread spacer rings or extension tubes to make up the difference between your camera's sensor and the 55mm distance provided by the adapter.

  • Compatible Telescope Celestron EdgeHD 8
    Configurations two lengths, for the 133.35 mm backfocus at f/10 or the 105 mm backfocus of the Celestron f/7 focal reducer
    Remaining Backfocus 55 mm in either configuration
    Camera Attachment T-thread (T-rings and T-thread spacers sold separately)

    • T-Adapter with Filter Holder

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  • Starizona Warranty