Happily Serving You in the Same Location for Over 58 Years!

Welcome!

Focusers

Items 1 to 20 of 66 total

per page
Page:
  1. 1

Set Descending Direction
  1. JMI - RCF Base Plate

    JMI - RCF Base Plate

    All RCF focusers can be purchased with either a flat base or curved base (specify RCF model and ″flat″ or ″curved″ base). The standard radius on a 1.25″ RCF curved base is 3.75″ (7.5″ diameter) ... Learn More
    Model#: RCFBASE
    $16.00

  2. JMI - RCF Drawtube Upgrades

    JMI - RCF Drawtube Upgrades

    RCF focusers come standard with a 3″ length drawtube. The following part number is for upgrading the drawtube length to 4.6″ at the time of purchase of an RCF focuser ... Learn More
    Model#: RCFDTUPGRADE
    $19.00

  3. JMI - Focuser Backup Plate - Flat

    JMI - Focuser Backup Plate - Flat

    For adding support when mounting JMI EV, NGF (1.25" and 2") or RCF focusers on Sonotube (cardboard) or wooden optical tubes. (Will not work with the EV-75 Upgrade.) The plates can be easily curved or flattened as needed ... Learn More
    Model#: ADPTBUPF
    $25.00

  4. JMI - Focuser Backup Plate - Curved

    JMI - Focuser Backup Plate - Curved

    For adding support when mounting JMI EV, NGF (1.25" and 2") or RCF focusers on Sonotube (cardboard) or wooden optical tubes. (Will not work with the EV-75 Upgrade.) The plates can be easily curved or flattened as needed ... Learn More
    Model#: ADPTBUPC
    $25.00

  5. JMI - Cassegrain Base for EV Focusers

    JMI - Cassegrain Base for EV Focusers

    Base for EV Focuser with 2 inch Cassegrain Thread ... Learn More
    Model#: EV-BASC
    $44.00

  6. JMI - EV Event Horizon Focuser Illuminated Dial LED Upgrade

    JMI - EV Event Horizon Focuser Illuminated Dial LED Upgrade

    This upgrade uses an LED to illuminate the focuser positioning dial on any EV focuser. Pressing the switch activates the LED which automatically shuts off (slowly fading to dark) ... Learn More
    Model#: EVUPGLED
    $55.00

  7. JMI - NGF Focuser Upgrade

    JMI - NGF Focuser Upgrade

    A DFC can be added as an option to any JMI NGF focuser. (After-purchase upgrades require return of focuser to JMI ... Learn More
    Model#: DFCJ
    $74.95

  8. JMI - EV-VMC Event Horizon Focuser Upgrade - Vixen Cassegrain

    JMI - EV-VMC Event Horizon Focuser Upgrade - Vixen Cassegrain

    Vixen VMC 200, VMC 260The EV-VCM Upgrade makes the following changes to an EV-1c, EV-2c or EV-3c focuser to prepare it to replace the stock focuser on the Vixen Cassegrain:1) Upgrade to a special Vixen Cassegrain Base ... Learn More
    Model#: EVUPGVMC
    $80.00

  9. JMI - Extra-Large-Format Cassegrain Base

    JMI - Extra-Large-Format Cassegrain Base

    Base for EV Focuser with 4 inch Cassegrain Thread ... Learn More
    Model#: EV-BASX
    $84.00

  10. JMI - EV-75 Event Horizon Focuser Upgrade - LXD75 SN-6/8/10

    JMI - EV-75 Event Horizon Focuser Upgrade - LXD75 SN-6/8/10

    Meade LXD55 SN-6 / SN-8 / SN-10, LXD75 SN-6 / SN-8 / SN-10 The EV-75 Upgrade makes the following changes to an EV-1n, EV-2n or EV-3n focuser to prepare it to replace the stock focuser on the Meade Schmidt-Newtonian: this is only valid at the time of purch

    ...
    Learn More
    Model#: EVUPG75
    $89.00

  11. JMI - Digital Read Out for NGF-CM, NGF-55SM, NGF-55DM Focusers

    JMI - Digital Read Out for NGF-CM, NGF-55SM, NGF-55DM Focusers

    DRO Encoder Assembly for JMI NGF FocuserDigital Read Out for NGF-CM, NGF-55SM, NGF-55DM Focusers This is the portion of a DRO system that attaches to the NGF focuser (Specify the NGF focuser model) ... Learn More
    Model#: DRONGFC
    $90.00

  12. JMI - Digital Read Out for NGF-S Focuser

    JMI - Digital Read Out for NGF-S Focuser

    DRO Encoder Assembly for JMI NGF FocuserDigital Read Out for NGF-S FocuserThis is the portion of a DRO system that attaches to the NGF focuser (Specify the NGF focuser model). A DRO Hand Unit or Smart Focus is also necessary for proper operation ... Learn More
    Model#: DRONGFS
    $90.00

  13. JMI - Digital Read Out for NGF-DX1/ -DX2/ -DX3/ -DX4 Focusers

    JMI - Digital Read Out for NGF-DX1/ -DX2/ -DX3/ -DX4 Focusers

    DRO Encoder Assembly for JMI NGF FocuserNGF-DX1/ -DX2/ -DX3/ -DX4 FocusersThis is the portion of a DRO system that attaches to the NGF focuser (Specify the NGF focuser model). A DRO Hand Unit or Smart Focus is also necessary for proper operation ... Learn More
    Model#: DRONGF
    $90.00

  14. JMI - Digital Read Out for NGF-XT Focuser

    JMI - Digital Read Out for NGF-XT Focuser

    DRO Encoder Assembly for JMI NGF FocuserDigital Read Out for NGF-XT FocuserThis is the portion of a DRO system that attaches to the NGF focuser (Specify the NGF focuser model). A DRO Hand Unit or Smart Focus is also necessary for proper operation ... Learn More
    Model#: DRONGFXT
    $90.00

  15. JMI - Digital Focus Counter for JMI Motofocus

    JMI - Digital Focus Counter for JMI Motofocus

    DFC for JMI MOTOFOCUS UpgradeUpgrades a MOTOFOCUS unit with a piggy-back DFC at the time of purchase (see exceptions below). (MOTOFOCUS units cannot be upgraded with DFC after purchase ... Learn More
    Model#: DFCMF
    $99.00

  16. JMI - Digital Focus Counter for Celestron SCTs
  17. JMI - Digital Focus Counter for Meade SCTs non-GPS

    JMI - Digital Focus Counter for Meade SCTs non-GPS

    DFC for Meade SCTsMeade 203SC, 2080, 2120, Gem mounted 2080 / 2120, Basic (2080 / 2120), LX2, LX3, LX5, LX6, LX10, LX50 7″ Maksutov / 8″ / 10″, LX90, LX100 8″ / 10″, LX200 7″ Maksutov / 8″, LX200 10″, LX2 ... Learn More
    Model#: DFCM
    $119.00

  18. JMI - Model mini3 Newtonian Focuser without Motor
  19. JMI - RCF-mini1 (Reverse Crayford Focuser 1.25 ") without Motor
  20. JMI - Digital Read Out for JMI Motofocus

Items 1 to 20 of 66 total

per page
Page:
  1. 1

Set Descending Direction