MoonLite CRL 2.5 inch Large Format Crayford Newtonian Focuser

$755.00$1,725.00

or 4 fortnightly payments from $188.75 with Afterpay More info

The modular design of the CRL large 2.5″ large format Newtonian focuser makes it very versatile. Just pick the options you need in these 4 categories: OTA Flange, Drawtube, Focus knob/motor, and Color.

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Description

The modular design of the CRL large 2.5″ large format Newtonian focuser makes it very versatile. Just pick the options you need in these 4 categories: OTA Flange, Drawtube, Focus knob/motor, and Color.

CRL Specifications
CRL Specifications

We offer everything from our manual Dual rate reduction unit with shaft lock knob to different types of motor options for both visual or imaging configurations. Our “High Res” stepper motor options use PC based interfaces, providing automated focus ability running todays ASCOM software. Different draw tube lengths / travels with 68mm thread in adapters make a rigid all threaded connection for large imaging loads. The C-axis drawtube collimation system provides flexibility for achieving perfect mechanical centerline collimation should the need arise. Custom anodized colors and custom flange machining (by request) make for a perfect custom focuser to match your Newtonian.

MoonLite manufactures many size flanges for the CRL Newt focuser. Please use the pull down menu to select the required flange.

CRL Flange Options
CRL Flange Options

All current CRF flanges feature a 2 piece rotating flange design with a lock knob providing camera angle adjustment. It consist of an upper flange part and a lower flange part on a rotatable radial dove tail design. The upper flange part bolts on to the focuser body with 3 bolts. The lower flange part has the curve and 4 bolt pattern and connects in to the upper flange. This 2 part rotating flange system provides collimation ability using a simple 3-point push pull bolt/setscrew arraignment. Please note all focusers are factory collimated dead on before we ship them, and do not require any adjustment. The only time collimation should be changed is if the OTA has some kind of defect causing the focuser to set slanted on the tube. In this case the focuser’s collimation ability would come in handy to correct the mechanical centerline collimation of the OTA in question. Flanges can be swapped on the bottom of the focuser so it will fit different OTAs. Additional flanges can be purchase separately.

  • The curved flanges come in curve sizes from 6″ to 24″ please see bottom of page to pick the correct curve. The curve size is based on the mirror size of the scope, not the larger tube diameter. Example an 8″ flange has approx. a 9 1/2″ curve.
  • The flat flange is designed for larger dobs that have a flat focuser mounting board and has leveling set screw adjustments in the corners.
  • The TAK E130 flange matches both the curve and bolt hole locations of the TAK E130, the matching drawtube is the threaded E130 drawtube.
  • The TAK E160 flange matches both the curve and bolt hole locations of the TAK E160, the matching drawtube is the threaded E160 drawtube.
  • The TAK E180 flange matches both the curve and bolt hole locations on the TAK E180, the matching drawtube is the threaded E180 drawtube.

MoonLite CRL focuser drawtubes have 3 travel sizes to pick from, 1″ travel, 1.5″ travel, and 2″ travel versions. The drawtube has a 68mm thread top to allow many different thread in adapters to be used. Please Note – all drawtubes include both a 68mm to 2″ comp ring adapter and a 68mm to 1 1/4″ comp ring adapter for free except the special TAK E130/E160 and E180 drawtubes. The TAK drawtubes have the specific thread for the internal TAK corrector lens to thread in. Please use the pull down menu at the bottom of this page to select your drawtube.

CRL Drawtubes
CRL Drawtubes
  • 1″ travel 68mm female threaded drawtube. This drawtube follows the new MoonLite 68mm thread standard and supports all MoonLite 68mm male threaded adapters. Both a 2″ and 1 1/4″ 68mm adapter are included with the focuser when this drawtube is picked.
  • 1.5″ travel 68mm female threaded drawtube. This drawtube follows the new MoonLite 68mm thread standard and supports all MoonLite 68mm male threaded adapters. Both a 2″ and 1 1/4″ 68mm adapter are included with the focuser when this drawtube is picked.
  • 2″ travel 68mm female threaded drawtube. This drawtube follows the new MoonLite 68mm thread standard and supports all MoonLite 68mm male threaded adapters. Both a 2″ and 1 1/4″ 68mm adapter are included with the focuser when this drawtube is picked.
  • TAK E130 threaded drawtube. This drawtube is threaded for the original TAK E130 Flattener and has the same 1.1 of travel. No adapter come with this drawtube option, customers would use their existing TAK adapters installed in to the flattener.
  • TAK E160 threaded drawtube. This drawtube is threaded for the original TAK E160 Flattener and has the same 1.1 of travel. No adapter come with this drawtube option, customers would use their existing TAK adapters installed in to the flattener.
  • TAK E180 threaded drawtube. This drawtube is threaded for the original TAK E180 Flattener and has 1.1″ of travel. No adapter come with this drawtube option, customers would use their existing TAK adapters installed in to the flattener. However an optional TAK E180 thread to 2″ comp ring adapter is available, it may come in handy for customers wanting to use a Laser collimator in the focuser. TAK does not provide any way to put a Laser in the stock focuser, but once the MoonLite focuser is installed it will now be possible to achieve much better collimation using a laser with the C-axis collimation system.
CRL 68mm Drawtube Adapters
CRL 68mm Drawtube Adapters

MoonLite manufactures different thread-in adapters for the new 68mm threaded drawtube standard. A 68mm to 2″comp ring and 68mm to 1 1/4″ comp ring adapter are included with the focuser for free, however a T-thread, STL-thread, STXL-thread, 48mm Filter-thread, Atik Camera-thread, and many other adapters at available if needed.

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