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MoonLite CF Model (2 inch format) Refractor Focusers

MoonLite CF Model (2 inch format) Refractor Focusers
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Price:  Please Call to Confirm the Price(Inc. 20% VAT)

Product Code:  MLCF2
Manufacturer:  MoonLite

MoonLite


The modular design of the CF refractor focuser makes it very versatile for just about any refractor. Just pick the options you need in these 4 categories: Flange, Drawtube, Focus knob/motor, and Color.

We offer everything from single rate drive configurations to our popular dual rate 8 to 1 Tri-knob reduction unit for heavy duty loads such as (CCD imagers and bino viewers). We offer several different types of motor systems and PC based interfaces providing automated focus ability running today's ASCOM software. Plus different draw tube travels and configurations for every kind of EP, Bino viewer and CCD camera. Our collimatable mounting flanges provide flexibility for achieving perfect mechanical centerline collimation. Our shaft lock option provides focus lock with no image shift. Custom anodized colors and custom machining (by request) make for a perfect custom focuser to match your refractor.

Flanges:

Please see the "Technical Specifications" tab for available flanges.

Drawtubes:

MoonLite offers 4 different drawtube configurations for the 2" format CF model refractor focusers. Please use the pull down menu to select the drawtube located at the bottom of this page. Please Note - All focusers include a 2" to 1 1/4" adapter. The adapter is threaded for 2" filters. All drawtubes have a 3 Thumbscrew Brass Compression system for great gripping power.

  • 4.5" travel  is the most popular drawtube for a 2" format focusers on a refractor. 
  • 2.5" short travel version drawtube is designed for small fast scopes. The shorter length of the drawtube keeps the edge of the drawtube from bumping the light cone when racked the whole way in on Fast refractors. 
  • 4.5" travel "low position" compression ring style drawtube. This drawtube also uses 3 thumbscrews for extreme grip like the models above but the brass compression ring is located in a lower position so the brass compression ring clamps around the true 2" OD of diagonal, not at the beveled under cut area. Some Diagonals such as AP and WO brands have bevels back cut in to the 2" OD barrel. MoonLite's "Low position" drawtube solves the misalignment problem and grips the diagonal properly to maintain accurate collimation and load bearing ability. Please note- the "low position" comp ring bump out on the top of the drawtube adds .8" to the height of the focuser, not 3/8" like the regular comp ring design does.
  • 2.5" travel "Low position" compression ring style drawtube is designed for fast scopes. The shorter length of the drawtube keeps the edge of the drawtube from bumping the light cone when racked the whole way in on Fast refractors. It also offer a Low Position brass compression ring location like the 4.5" travel drawtube above.  Adds .8" the focuser's profile, not 3/8" like the regular drawtubes do.

Please consider Moonlite's T-thread adapter for attaching your CCD / Filter wheel to a MoonLite focuser. It fixes the mis-match size problem between the 2" compression ring drawtube standard and the under cut section (1.9") nose piece. It makes for a very rigid and collimated solution when clamping on to a true 2" smooth bore surface.

Focus

MoonLite has many knob and motor configurations. Our reduction systems and motor options are integrated into the focuser at the time of assembly. Please use the pull downmenu located at the bottom of this page to select the configuration you need.

  • The Single rate configuration uses 2 regular 1.5" diameter knobs providing .58" travel rate per revolution. The single rate configuration is only recommended for light weight duty due to the 3 lb vertical load capacity, or for customers planning on installing a Motor kit. Almost all MoonLite focusers are dual rate Tri-knob or motorized versions, however we do offer this single rate model for smaller scopes that are not using heavy loads and do not need a 2 speed reduction unit, such as a finder scope.
  • The dual rate Tri-knob option is a 2-speed configuration with a regular knob on one side and a fine and coarse knob on the other. Both coarse knobs are 1.5" OD, and the fine knob is 1.2" in size. The fine knob uses an oversized 8 to 1 reduction unit featuring a preloaded, all ball bearing planetary reduction design that has no backlash or play. The inline unit can simple be rolled by the slightest touch of your finger to make very fine focus movements plus has an auto brake when focus is stopped. No scope wiggles here and perfect collimation plus an 6 lb weight capacity make this option ideal for typical visual or imaging use. The fine knob is on the right by default, but can be made a lefty if needed. If increased lifting capacity is needed, please consider one of our motor options below. The motor option give the CF focuser an 8 lb lifting capacity rating.
  • The dual rate Tri-knob with Shaft Lock option also uses the 8 to 1 reduction unit like above but adds a Shaft Lock knob on the standard side. The Shaft lock option uses a unique mini brass compression ring clamp sub system that allows the user to lock the shaft with out deflecting the drawtube. This type of focus lock is much better then the old "thumb screw against the draw tube" style that would shift the image when pressed against the draw tube. The fine knob is on the right by default and can not be configured as a lefty.
  • High Resolution Stepper Motor/stand alone for customers that may all ready have a stepper motor controller. – The high resolution stepper motor option provides extremely fine focus resolution required by today's high-end CCD imaging platforms. It provides an 8 lb. load capacity once installed on a CF focuser. It gives the focuser great repeatability and automated focus ability for today’s imaging requirements when using a PC. The high resolution stepper motor’s slip clutch feature allows both manual operation using the focusers knobs and electronic PC control at the same time. The stepper motor follows the 9 pin DBA standard pin out so it will work with ROBO focus (pin for pin) controllers along with many other brand controllers. We offer two different controllers below if you do not have a controller.
  • High Resolution Stepper Motor with MoonLite Mini V2 Controller – The high resolution stepper motor with mini V2 ASCOM compliant controller. The MoonLite Mini controller features a remote temp probe, Speed control and up/ down buttons on the controller box for manual operation of the motor alone with full PC control. It uses a USB connection to your PC and runs off standard 12 volt DC. We include an AC adapter with a universal plug so it will work in any country, USB cable, 9pin DBA cable, and remote temp probe. Works with all ASCOM based software once the driver is loaded. We also include a basic Non- ASCOM program for customers to operate the focuser that may not have ASCOM set up. The 8 lb. load rating and precise focus ability make this a good configuration for permanent or remote imaging platforms. The slip clutch feature for manual knob operation is always included with all Motor options so the focuser can be used in many configurations, manual knob, controller buttons, or remote PC operation.
  • High Resolution Stepper Motor with Dual Port DRO Display Controller. This option includes a 2 port controller and can operate 2 separate focusers at the same time, or 1 focuser running both focus and a rotator. It is a full ASCOM compliant controller along with the high resolution stepper motor with slip clutch. Along with our ASCOM driver, we also include a basic Non- ASCOM program for customers to operate the focuser that may not have ASCOM set up. This controller is best for both visual and PC operation due to its buttons and full DRO display on the controller box located at the scope. It has a fine and fast mode using the buttons on either channel with a full DRO position readout on the display that shows the exact step count position just like in the software of your favorite imaging program. The controller has a remote temp probe just like the mini V2 above and full digital display, plus manual buttons for stand alone use. The 8 lb. load rating on a CF model focuser and extreme precise focus ability at .00008” resolution and repeatability make this the ultimate configuration for permanent and remote imaging platforms. This controller / stepper motor option is recommended for both PC and hand held manual operation. It comes with universal voltage AC adapter and USB cable. The slip clutch feature for manual knob operation is always included with all Motor options so the focuser can be used in many configurations, manual knob, controller buttons, or remote PC operation.

MoonLite offers ASCOM drivers to run with your existing imaging software, and a simple non ASCOM program for customers not running a full blown ASCOM automated system (for someone who just wants a simple automated control app to run the focuser). See the Download tab on our Web site for Software. Please note: Motor kits can be added at a later time, as we sell motor kits that customers can install themselves.

The amount of slip can be adjusted on the new slip clutch by adjusting the tightness of the slip clutch ring. For manual knob operation of the focuser, turn the silver knurled ring loose. For motor operation of the focuser, tighten the silver knurled ring.

To adjust the knurled rings tension, it helps to hold the manual knob still with your right hand and turn the clutch ring with your left hand. Holding the manual knob in place will keep the shaft from turning allowing the clutch ring to tighten / loosen the clutch.

Note: No damage will be done if the focuser motor continues to run past the mechanical stops of the drawtubes travel. Even if the clutch is tight, it will simply slip when the travel runs out.

Maintenance:

All CF model focusers equipped with a 2 part flange can be collimated. All focusers have a lifting capacity adjustment.

Adjustments:

  • Lifting Capacity: The drawtube pressure can be adjusted to each user’s preference. Increasing the pressure increases the load capacity (vertical lifting capacity) of the focuser. Decreasing the pressure lowers the load capacity but gives the focuser a smoother focusing action. We set the focuser at approximately 4 lbs. at time of assembly; however, you can adjust it to be more depending on your specific needs. The ideal setting is to have it adjusted so the focuser can hold the heaviest load presented without slipping and requiring no additional force. This will give the focuser the best feel and still provide the vertical lifting capacity required. To adjust, turn the aluminum thumbscrew located between the two setscrews on the bottom of the focuser CW to increase load capacity. The aluminum thumbscrew can only add pressure, not take away pressure. This is due to the 2 set screws on each side of the thumbscrew applying a min set pressure amount. In some rare case it may be necessary to do a coarse adjustment by turning the 2 setscrews located on each side of the aluminum thumbscrew (1/8 Allen wrench) a very small amount. Normally, 1/20 of a turn or less should be made on the setscrews in a CW direction, then check the lifting capacity pressure by racking the drawtube up and down with your heaviest load.
  • Collimation: To adjust collimation, turn the 4 mini setscrews located in the top part of the 2-part flange. A small amount of tip/tilt (.015 max) can be made by adjusting the setscrews. We collimate each focuser dead on before shipping it so no adjustment should be required; however, if collimation is required due to some sort of OTA defect when the focuser is installed, then the tip/tilt ability of the focuser's flange will come in handy. Please Note: rotating the focuser will throw off any collimation reference once the flange is tilted off plane. So please do not collimate the focuser off center line unless it is absolutely necessary to fix a gross error in the OTA.

Maintenance:

  • To maintain the CF focusers performance, keep all bearing and shaft riding surfaces clean. All crayford style focusers require a clean bearing to drawtube surface for smooth operation. The drawtube has been polished to remove all machine marks and hard anodized resulting in the action having a super smooth feel. Keeping the surfaces clean will keep the focuser operating at optimal performance. Dual rate focuser owners may want to break in the 8:1 reduction unit by running it up and down when first receiving the focuser. It is adjusted fairly tight at the time of assembly and requires a little use to come up to peak performance. No maintenance should be required on the reduction unit as it is packed with lithium low temperature grease for the life of its operation.

MoonLite manufactures many flanges that fit a variety of different refractors, plus we machine custom flanges for any size telescope by request. Please use the pull down menu to select the flange located at the bottom of this page.

Most CF 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 and contains the twin dove tail finders. The lower flange part has the threads/ bolt pattern that matches the refractors OTA and connects in to the upper flange. The thickness and diameter of the lower flange is designed for the telescope it is to be installed on. 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 refractor. Extra Flanges are sold separately for $75

 

  • The AR5 flange fits the Meade AR5, Sky Watcher 5", Antares 1208, 12012, etc. It is a cap style 3 bolt flange to fit 5.125" OD tubes. The correct drawtube is the 4.5" travel Comp ring drawtube. We also make a CFL 2.5" large format focuser in this size.
  • The AR6 flange fits the Meade AR6, Sky Watcher 6", Antares 1529, etc. It is a cap style 3 bolt flange to fit 6.175" OD tubes. The correct drawtube is the 4.5" travel Comp ring drawtube. We also make a CFL 2.5" large format focuser in this size.
  • The AT65 flange fits the Astro tech 65EDT. It is a male 2.904" X 1mm threaded flange. The correct drawtube is the 2.5" travel.
  • The AT66 flange fits the Astro Tech 66mm. It is a female 2.679" X 1mm threaded flange. The correct drawtube is the 2.5" travel.
  • The AT72ED flange fits the Astro Tech 72ED. It is a female 3.392" X 1mm threaded flange. The correct drawtube is the 2.5" travel.
  • The Borg 68mm X .75mm threaded flange fits both the 101 and 105 Borg refractors. The correct drawtube is the 4.5" travel. Please note we make a CFL 2.5" large format focuser for the Borg 125.
  • The Borg 77mm X .75mm threaded flange fits both the 67FL and 80 Borg refractors. The correct drawtube is the 4.5" travel.
  • The Brandon 80 flange fits the Brandon 80mm F6 refractors. It is a female 2.850" X .75mm threaded flange. The correct drawtube is the 4.5" travel. Customers remove the extender tube section off of the refractor when installing this focuser. We also make by request the Brandon 94mm F7 5-bolt style flange.
  • The Burgess 91 Flange fits the Burgess 91 triplet. It is a male 3.455" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Burgess 127 Flange fits the Burgess 127. It is a male 4.984" X 1mm threaded flange. The correct drawtube is the 4.5" travel .
  • The Celestron SS70 flange fits the Celestron SS70F. It is a female 2.956" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Celestron 80ED / SV90 flange fits the Celestron 80 ED, Stellavue 90, Barska Magnus 80, and Onyx 80. It is a female 3.5" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Celestron 100ED flange fits the Celestron 100 ED. It is a female 3.884 X 1.5mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Coronado 60 Solar Max I flange fits the first original version of this scope. It has a male 3.018" X 1mm threaded flange. The correct drawtube is the 4.5" travel. Please see the CS model focuser for the Solar Max II version with the rear etalon.
  • The EON / Equinox / Sky Watcher flange fits Orion's EON 80 & 120 APOs, Sky Watcher Equinox 60, 80, 120 APOs, and the Astro Tech 80ED. It is a female 3.274" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The ES80 flange fits the original Explorer Scientific 80ED. It is a female 3.478" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The ES102 /Meade 102 flange fits both the Meade 102ED and the original Explorer Scientific 102. It is a female 3.985" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The ES80 Essentials flange fits the Explorer Scientific 80 Essentials. It is a male 3.417" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The ES102 Essentials flange fits the Explorer Scientific 102 Essentials. It is a male 3.884" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The ES80 C.F. flange fits the Explorer Scientific 80 Carbon Fiber OTA. It is a male 3.612" 3-bolt flange. The correct drawtube is the 4.5" travel.
  • The ES102 C.F. flange fits the Explorer Scientific 102 Carbon Fiber OTA. It is a male 4.598" 6-bolt flange. The correct drawtube is the 4.5" travel.
  • The Kson1026ED flange fits the Kson1026ED refractor. It is a Female 3.510" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Meade 80ED flange fits the Meade Series 5000 80mm ED APO refractor. It is a Female aprox 3.500" X 1mm threaded flange. The correct drawtube is the 4.5" travel. We make 2 slightly different thread sizes for this scope. One original thread size for the Single speed focuser, and a slightly smaller thread size for the later 2-speed focuser OTA.
  • The Orion ED80T CF flange fits the Orion ED80T Carbon Fiber tube. It is a female 3.475" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Orion 90 flange fits the Orion 90mm SkyView. It is a male 3.378" 3- bolt flange. The correct drawtube is the 4.5" travel.
  • The Orion 102/ AT102 flange fits the Orion 102ED, Astro Tech 102ED, WO98 Carbon Fiber tube, Astrotelescopes 102, and Kunming United 102. It is a male 4.006" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The SV 80ED,102ED,110ED flange fits the Stellarvue 80ED, SV102ED, and SV110ED refractors. It is a male 3.467 X 1mm threaded flange. The correct drawtube is the 4.5" travel. Please see our CFL 2.5" large format focuser for SV scopes that use the SV25F 2.5" format focuser.
  • The Stellarvue SV80/9D flange fits the Stellarvue SV80/9D. It is a male 3.404" 3-bolt flange. The correct drawtube is the 4.5" travel.
  • The SV80S flange fits the Stellarvue SV80S. It is a male 3.335" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Synta standard format flange is a direct fit for Synta manufactured scopes such as Celestron 6" refractor, Orion's 150mm, 120mm, 100mm, and 80mm refractors, Orion's ED80, ED100, and ED120, Vixen's ED80FS, ED100SF, Sky Watcher Pro Series P80, P100, P120, ED-APOs, all EQ5 series, and Celestron omni series scopes. It is a 3.814" 3-bolt flange. The correct drawtube is the 4.5" travel. We also make a CFL large 2.5" format focuser version.
  • The Synta small format flange fits the Orion short tube 80 and 90, SW 80mm F5, Stellarvue AT1010 NightHawk, Synta 90MM F5.6, Discovery 90mm F5.6, Konus 90mm F11, and Meade model 390 90mm F11. It is a 3.388" 3-bolt flange. The correct drawtube is the 2.5" travel.
  • The TAKFS60c flange fits the Takahashi FS60c. It is a male 3.050" X 1mm threaded flange. This particular focuser is a hybrid consisting of a smaller CS model body instead of the stock CF focuser body. The correct drawtube is the 1.5" travel CS model drawtube. We automatically pick the correct body and drawtube when we see this flange ordered on a CF model focuser. We ignore the drawtube picked in the shopping cart.
  • The TAK FS78 flange fits the Takahashi FS78. It is a female 3.715" X 1mm threaded flange. The correct drawtube is the 2.5" travel.
  • The TAK Sky 90 flange fits the Takahashi Sky 90. It is a male 3.605" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The TAL 250 flange fits the TAL 250 OTA. It is a Flat bolt on style flange. It does not have dove tail finder brackets on the upper flange. Finder brackets would be un usable due to the width of the OTA. The correct drawtube is the 2.5" travel.
  • The TMB 92L flange fits the TMB 92L refractor. It is a Male 3.414" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The TV female thread flange fits Tele Vue refractors that have the standard 2.955" 24TPI threaded flange. It is a female 2.995" 24TPI threaded flange. The correct drawtube is the 2.5" travel.
  • The TV male threaded flange fits Tele Vue refractors that have the reverse Female 2.955" 24TPI threads on the OTA side. Like the Genesis SDF Petzval OTAs and the FS 100mm Fluorite refractor. It is a male 2.995" 24TPI threaded flange. The correct drawtube is the 2.5" travel.
  • The Unitron flange fits Unitron 102 refractors. It is a male 2.768" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Vixen 3-bolt flange fits the Vixen 102 and Celestron 102s. It is a 4.4" 3-bolt style flange. The correct drawtube is the 4.5" travel.
  • The Vixen threaded flange fits Vixen 140SSF, 115ED, ED103S, and ED81S. It is a male 3.457" X 1mm threaded flange. The correct drawtube is the 4.5" travel. We also make a CFL large 2.5" format focuser with this same threaded flange size. We make a Vixen threaded adapter for the large 68mm thread top drawtube to support all Vixen accessories and field flatteners etc.
  • The WO 66mm flange fits the William Optics 66mm Megrez and Zenith Star refractors. It is a Male 2.860" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The WO GT81 flange fits the WO GT81. It is a female 3.518" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The WO FLT98 flange fits the WO FTL98. It is a female 4.085" X 1mm threaded flange. The correct drawtube is the 4.5" travel.
  • The Upper 2.836" flange standard is Moonlite's default upper flange size for all Moonlite Lower flanges. It also fits the lower flange portion on WO 72, WO80, WO102 Megrez and Zenith Star refractors. The correct drawtube is the 4.5" travel.
  • The Upper 2.897" flange fits the lower flange size on Meade Series 6000 80mm, Lunt 102 refactors, SV 70ED carbon fiber tube, AT 80LE, AT 80EDT Carbon Fiber, AT 152, and AT102. The correct drawtube is the 4.5" travel.
  • The Upper 2.998" flange fits the lower flange size on William Optics FLT98 Carbon Fiber OTAs, WO GT81, WO GT102, and WO 71 Megrez and Zenith Star refractors. Also fits the Kunming United 152 F5.9. The correct drawtube is the 4.5" travel.
  • The Upper 3.072" flange fits the lower flange size on William Optics 90, WO 88, and WO 105mm Megrez and Zenith Star refractors. The correct drawtube is the 4.5" travel. 

 

The profile of the CF focuser depends on the flange installed. The flange thickness is designed to make the CF focuser mimic the focuser it is to replace.

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