Description

Optec Lepus HD – C9.25 EdgeHD

The Celestron C9.25 EdgeHD OTA is unique among Celestron s EdgeHD models with a slightly slower primary mirror compared to the other SCT telescopes produced.  Like the other EdgeHD models, a full aperture corrector plate and 3-element corrector  lens group in the baffle tube make the C9.25HD is a fully aplanatic SCT design.  The C9.25HD features an optimized back-focus of 146mm and native focal ratio of about f 9.9.  The field is flat with an image circle approximately 42mm in diameter. 

Attaching the Lepus-HD C9.25 Edition telecompressor to the back of the OTA will yield an approximate f 6.4 light cone at the recommended on-axis back-focus distance of 96mm. The effective field of view is reduced to 28mm with some light loss beyond about 24mm which is correctable with good flat-fielding techniques.  Because the C9.25HD corrector lens group is mounted very close to the end of the baffle tube at the exit port, the Lepus-HD C9.25 Edition includes a 5mm thick aluminum spacer to ensure the corrector lenses and telecompressor lens do not make physical contact. 

Technical Specifications

Telescope-Side Compatibility:

• Celestron EdgeHD C9.25 large thread.

• Camera-Side Compatibility:

  • Lepus camera-specific mount.

  • In the Box
    

    Optec Lepus HD – C9.25 EdgeHD

    Manual & Warranty

    Optec 1-Year Warranty

    Lepus HD – C9.25 Edition Diagram