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HyperStar 3 Lens - 9.25" Celestron Edge HD


SKU: HS3-C925HD
PRICE: 849.00

HyperStar 3 Lens - 9.25" Celestron Edge HD Description

Introducing the new HyperStar C9.25 Lens. Now 9.25" SCT owners can join the HyperStar revolution. Ultra-fast, wide-field CCD imaging has never been easier. HyperStar quickly converts your SCT into a fast imaging system. The HyperStar lens easily replaces the secondary mirror in the telescope, allowing a camera to be placed in front of the telescope. Switching between HyperStar and standard configurations is quick and simple--no tools required. See this video for a demonstration.

Features

The HyperStar C9.25 lens converts a Celestron Edge HD 9.25" SCT from f/10 to f/2.3, making the system 18 times faster. That means 18-times shorter exposures! Now you can capture deep-sky images without guiding and without an equatorial wedge (in alt-az configuration). The HyperStar lens shortens the focal length of the telescope, giving a much wider field of view, and giving a greater tolerance of tracking errors, allowing for unguided, alt-az imaging.

The HyperStar C9.25 is compatible with a variety of cameras, including both CCDs and DSLRs. Like the other 8" and larger HyperStar models, the HyperStar C9.25 covers up to a 27mm (APS-size) sensor. Separate adapters are required for different cameras. One adapter is included with the HyperStar lens.

Optical performance is excellent, with a coma-free, flat field of view almost 3 degrees wide.

FAQs

What telescopes are compatible?

The Edge HD 9.25" SCT telescope has a removable secondary mirror assembly, allowing the use of the HyperStar C9.25 lens.

Why are the other HyperStar lenses faster?

The 9.25" SCT uses a slightly different optical configuration, in order to produce a flatter field of view and have a smaller central obstruction. This means it uses a slower primary mirror (f/2.3 versus the f/2 mirror in other SCTs). This means the HyperStar has to be slightly slower to retain its excellent optical performance. The difference between f/2.3 and f/2 is negligible.

Specifications

  • Focal Ratio: f/2.3
  • Focal Length: 540mm
  • Maximum Usable Sensor Size: 27mm Diagonal (APS Format)
  • Field of View (with 27mm sensor): 2.8 degrees
  • DSLR Compatible
  • Camera Adapter Threaded for 2" (48mm) Filters
  • Backfocus (from mounting thread to focal plane): 59.7mm (2.35")
  • Length (without camera adapter): 4.2"
  • Diameter: 4.1"
  • Weight: 1.8 lbs.

HyperStar C9.25 HD Fork-Mounted OTA Instructions

HyperStar C9.25 HD German EQ-Mounted OTA Instructions


Select the camera model you will use below. The HyperStar includes one camera adapter of your choice.

Select the telescope mount you have below. If you have a CPC Deluxe HD fork-mounted model, select the first option. If you have a CGEM HD or CGE Pro HD model, or an Edge HD OTA on any other type of German Equatorial Mount, choose the second option.

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