This reducer was specially developed for the newer Schmidt-Cassegrain telescopes from Meade with ACF optics ("Advanced Coma Free"), which already have integrated field flattening. Here, the Lepus acts as a pure reducer to shorten the focal length.
It is very well suited for f/8 and f/10 Meade ACFs. The reducer has a 2" plug connection as standard, no SC thread!
The 2" plug-in sleeve has an integrated filter thread (M48 x 0.75) for screwing in various nebulae filters.
Lepus has a back focus of over 100 mm (105 mm), enabling it to fully illuminate a 22 mm CCD chip.
Advantages of the Optec Lepus Standard Reducer:
- The focal length of the telescope is reduced by a factor of 0.62. A focal length of 2000 mm becomes 1240 mm.
- The exposure time is reduced to less than 40%.
- Connection to the Meade ACF telescope is via the 2" barrel.
- The generous working distance of 105 mm from the connection flange allows the use of off-axis guiders or filter wheels.
The Lepus Standard Edition has a 2" plug connection on the telescope side and a dovetail on the camera side for Optec camera mounts.
The appropriate adaptors for the respective camera model are available as accessories.
Our expert comment:
The Optec Lepus alone does not allow direct connection to an imager (CCD camera or digital SLR with interchangeable lens). Please specify the imager you will be using when ordering so that we can provide you with the price of the correct adapter. For Canon EOS SLRs, there is a specific adapter with a Canon bayonet mount at the end - the 19392-47C. It is available to order under the reference number 48923. However, it is not directly visible on the website. It costs £59 including VAT.
For all other types of imagers, please consult the reference table available here on the Optec website: http://www.optecinc.com/astronomy/catalog/lepus/lepus_mounts.htm
(Sandra Eguay)
