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Optec Lepus HD Telecompressor for C9.25 EdgeHD

Optec Lepus HD Telecompressor for C9.25 EdgeHD

Starting Price: $295.00
Price as Configured: $295.00
Brand: Optec / SKU: OP-19410
Optec's Lepus 0.62X telecompressor lens designed especially for use with the Celestron EdgeHD 9.25 OTA.
Recommended Add-ons and Accessories
Product Price Quantity
OP-19382 - Optec Universal T-Thread Adapter for 55-mm Back Focus Camera
OP-19382 - Optec Universal T-Thread Adapter for 55-mm Back Focus Camera
About This Product
Lepus Universal T-Adapter.

This camera adapter for the Lepus focal reducer is 50mm long and features a male M42 x 0.75mm T-thread making it suitable for any camera with 55mm depth-to-sensor or "flange focal distance". This adapter is equivalent to #19392-47.

Add a T-ring to mate with Canon, Nikon, or other DSLR or mirror-less cameras.

Also available in M48 and M54 threaded versions.
$55.00 each
OP-19384 - Optec Universal M48 Adapter for Lepus
OP-19384 - Optec Universal M48 Adapter for Lepus
About This Product
Lepus Universal M48x0.75mm Adapter, 50mm long M48-thread adapter for any camera with 55mm depth-to-sensor. Designed for use with Lepus telecompressors.

Also available in T-thread and M54 threaded versions.
$55.00 each
OP-19387 - Optec Universal M54 Adapter for Lepus
OP-19387 - Optec Universal M54 Adapter for Lepus
About This Product
Lepus Universal M54x0.75mm Adapter, 50mm long M54-thread adapter for any camera with 55mm depth-to-sensor. Designed for use with Lepus telecompressors.

Also available in T-thread and M48 threaded versions.
$55.00 each
OP-19494 - Optec Lepus HD Retainer for TCF-Leo Focuser
OP-19494 - Optec Lepus HD Retainer for TCF-Leo Focuser
About This Product

Lepus HD retainer for TCF-Leo focuser. Fits larger 3.29" Celestron thread and replaces Lepus HD orange retaining ring. Presents male OPTEC-3600 dovetail for connection to the TCF-Leo focuser.

$75.00 each
OP-19390 - Optec VLC T-thread Camera Adapter for NextGEN/Lepus
OP-19390 - Optec VLC T-thread Camera Adapter for NextGEN/Lepus
About This Product
The Optec Variable Length Camera Adapters make setting your camera at the perfect back-focus distance quick and simple. Four different models allow you to connect your camera to the Optec Lepus, NextGEN, or NGC 214 telecompressor with a variable back-focus range of 17mm. Each VLC adapter can be adjusted for any distance between 25mm to 42mm. Refer to the back-focus diagram for your NextGEN, NGC, or Lepus telecompressor lens to determine the optimal back-focus distance for your configuration.
$95.00 each
OP-19393 - Optec VLC STL-Thread Camera Adapter for NextGEN/Lepus
OP-19393 - Optec VLC STL-Thread Camera Adapter for NextGEN/Lepus
About This Product
The Optec Variable Length Camera Adapters make setting your camera at the perfect back-focus distance quick and simple. Four different models allow you to connect your camera to the Optec Lepus, NextGEN, or NGC 214 telecompressor with a variable back-focus range of 17mm. Each VLC adapter can be adjusted for any distance between 25mm to 42mm. Refer to the back-focus diagram for your NextGEN, NGC, or Lepus telecompressor lens to determine the optimal back-focus distance for your configuration.
$95.00 each
QTY:  
Price as Configured: $295.00

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Special Considerations for C9.25 EdgeHD OTA:

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 (see diagram), 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.

Telescope-Side Compatibility:
Celestron EdgeHD C9.25 large thread.

Camera-Side Compatibility:
Lepus camera-specific mount.