Telescope Focusers

4.6" Length Drawtube Upgrade for RCF (at time of Purchase) By JMI

RCF focusers come standard with a 3" length drawtube. This option is for upgrading the drawtube length to 4.6" at the time of purchase of an RCF focuser.

** Only available for the 1.25" focusers

$12.00

Backup Plate for JMI Focusers (Flat) By JMI

This aluminum plate reinforces Sonotube (cardboard) and wooden optical tubes for mounting JMI focusers. The plates can be easily curved or flattened as needed. Works with EV, NGF (1.25" OR 2") or RCF focusers on cardboard tubes. (Will not work with the EV-75 Upgrade.)

$16.00

Backup Plate for JMI Focusers (Curved) By JMI

This aluminum plate reinforces Sonotube (cardboard) and wooden optical tubes for mounting JMI focusers. The plates can be easily curved or flattened as needed. Works with EV, NGF (1.25" OR 2") or RCF focusers on cardboard tubes. (Will not work with the EV-75 Upgrade.)

$16.00

Replacement Temperature Probe for TCF/TCF-S Focuser By Optec (CCD Photo Accessories)

Six-foot cable substitutes for standard 20" cable supplied with stk. #17660 or #17670.

$25.00

Sliding T-2 Focuser By Baader Planetarium

Baader Planetarium Sliding t-2 Focuser.

$37.00

2" Rack-and-Pinion Focuser By Orion

Focuser for custom scopes. Aluminum rack-and-pinion focuser holds 2" eyepieces and includes insert for 1.25" eyepieces. Has 1.5" of drawtube travel and tension adjustment. Racked-in height 2-11/16". Base contoured to fit 8"-aperture reflector tubes. Internally blackened drawtube.

$42.95

Adapter 2.0" - 2.0x24tpi Female Thread, 1.937" L By Starlight Instruments

Known to Fit: Meade 7inch to 9.25inch, Celestron and Meade SCTs, LX200, Celestron & Meade Fork Mounted Telescopes.

$49.00

Helical Focuser S (Rotating) By Borg

Borg Helical Focuser S (Rotating).
Borg's most economical helical focuser and the only one with a rotating movement, This focuser is useful as a supplemental visual focuser that provides fine adjustment for a coarse rack-and-pinion focuser, or eliminates the imae shift common with standard SCT focusers.

$55.00

RoboBracket for Takahashi 4" Focuser By Lapides

Give your RoboFocus the professional fit and finish (and security) it deserves! The RoboBracket is an aircraft-quality-aluminum, CNC-waterjet-machined and professionally fabricated, polished and anodized bracket for accurately and securely attaching the RoboFocus digital focuser to all modern Astro-Physics and Starlight Instruments FeatherTouch focusers.

$55.00

SCT Threaded Output Adapter - 3" By JMI

Large format SCT threaded output for inserting into a 3" drawtube. This adapter duplicates the large 3.25" diameter threads found on a large SCT allowing large format SCT accessories to be attached to the output of any 3" focuser. (This adapter is a standard accessory with an NGF-XTc focuser).

$58.00

2" Enhanced Extension Tube (2.13") By JMI

The Enhanced Extension Tubes include a compression ring for holding eyepieces and accessories without scratching the equipment. The adjusting screw presses against the ring which tightens around the eyepiece or accessory.

$59.00

2.0" Feather Touch Focuser Adapter to Astro Physics 2.7 x 24 TPI Female Thread By Starlight Instruments

This handy adapter is used to connect one of our 2.0" Feather Touch focusers to any Astro Physics 2.7 x 24 tpi female thread. Originally designed to allow a 2.0" Feather Touch focuser to connect to the end cap of a 3.5" Astro Physics (Feather Touch) focuser.

$60.00

2" Enhanced Extension Tube (2.63") By JMI

The Enhanced Extension Tubes include a compression ring for holding eyepieces and accessories without scratching the equipment. The adjusting screw presses against the ring which tightens around the eyepiece or accessory.

$61.00

Telescope Mount for TCF-S Focuser (Meade/Celestron) By Optec (CCD Photo Accessories)

This adapter is required to fit the TCF-S focuser to various telescopes. One end has the necessary fittings for the particular telescope and the other has a protruding ring with dovetail groove. The three #8-32 setscrews in the TCF-S body clamp down on this ring. This is the Meade/Celestron mount for 2" rear cell thread. Fits Meade SCT's and Celstron 8", 9.25" SCT's.

$63.00

2" Enhanced Extension Tube (3.13") By JMI

The Enhanced Extension Tubes include a compression ring for holding eyepieces and accessories without scratching the equipment. The adjusting screw presses against the ring which tightens around the eyepiece or accessory.

$63.00

Telescope mount for IFW & TCF-S FOCUSER / TeleVue 3" By Optec (CCD Photo Accessories)

TELESCOPE MOUNT FOR IFW & TCF-S FOCUSER. TeleVue 3” telescope mount, fits the NP101 male thread.

$69.00

2" Crayford-Style Focuser By Orion

Upgrade your Orion reflector with a quality 2" Crayford-style focuser*. Designed to replace existing rack-and-pinion focusers on Orion reflectors, the Crayford-style focuser provides an unmatched level of focusing smoothness and accuracy. Easy to install, this drop-in upgrade requires no modification of the optical tube.

$81.95

M42 Helical Focuser By Borg

Borg M42 Helical Focuser. Same as the 7841 but shorter travel.

$91.00

TCF-S3 Mount for Meade LX200 16" Telescope By Optec (CCD Photo Accessories)

Telescope mount for TCF-S3 focuser system. Fits Meade LX200 16-inch telescope with the 4-inch rear cell thread.

$95.00

TCF-S3 Mount for Meade Telescope w/3" Rear Cell Threads By Optec (CCD Photo Accessories)

TCF-S3 mount for Meade telescopes w/3" rear cell threads.

$95.00