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miscellaneous

Digital Focus Counter for Celestron SCTs [DFCC]

Jim's Mobile, Inc. (JMI)   ——   SKU: DFCC
$167.00 CAD
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About the JMI Digital Focus Counter for Celestron SCTs...

The JMI Digital Focus Counter is a low-cost mechanical alternative to the electronic DRO. The three-digit counter display allows 10 turns of the shaft before returning to zero. If you want focusing repeatability with an NGF focuser, SCT (Schmidt-Cassegrain Telescope) manual focus or MOTOFOCUS, this unit will do the job. It is available for all NGF focusers (both manual and motorized versions), as a manual unit which replaces the focus knob on 8" or larger SCTs (not recommended for CCD imaging due to space limitations and problems with image shift) and as a piggy-back option for most MOTOFOCUS units. (The piggy-back option is available only at the time of purchase of a new MOTOFOCUS unit and cannot be added later.)

 

This JMI Digital Focus Counter was designed to fit Celestron early C5 (dual fork arm), C5 / C5+ (single fork arm), C5-S, C5-SGT, C8, C8+, C8-S, C8-SGT, C11, C11-SGT, C14, Celestar 8, Celestar 8 Deluxe, CG-11, CG-14, CGE 1100, CGE 1400, Classic 8, CM-1100, CM-1400, CPC 800 / 925 / 1100, Fastar 8, G-5, G-8, Great Polaris C8, NexStar 8 GPS, NexStar 11 GPS, Polaris C8, Powerstar 8, Super C8, Super C8+, Super Polaris C8, Ultima 8 / 11

 

 

JMI Digital Focus Counter for Celestron SCTs Features...

 

  • Low-cost mechanical alternative to the electronic DRO

     

     

  • The three-digit counter display allows 10 turns of the shaft before returning to zero

     

     

  • Available for all NGF focusers (both manual and motorized versions

     

     

  • A piggy-back option for most MOTOFOCUS units

     

     

  • The piggy-back option is available only at the time of purchase of a new MOTOFOCUS unit and cannot be added later

 

 

JMI Digital Focus Counter for Celestron SCTs Specifications...

Equipment Type: Focuser Counter

Application: Celestron early C5 (dual fork arm), C5 / C5+ (single fork arm), C5-S, C5-SGT, C8, C8+, C8-S, C8-SGT, C11, C11-SGT, C14, Celestar 8, Celestar 8 Deluxe, CG-11, CG-14, CGE 1100, CGE 1400, Classic 8, CM-1100, CM-1400, CPC 800 / 925 / 1100, Fastar 8, G-5, G-8, Great Polaris C8, NexStar 8 GPS, NexStar 11 GPS, Polaris C8, Powerstar 8, Super C8, Super C8+, Super Polaris C8, Ultima 8 / 11

JMI Product Number: DFCC

 

Customer Note: The top two pictures show the front and back of the manual DFC designed for the Meade SCT. Inside the back end, you can see the coupler that attaches to the mounting collar (not shown). The bottom images show parts included with the DFC for the Celestron C8. They are (from left to right) the mounting collar, replacement knob, coupler and DFC body including sleeve, counter and knob.