Adapters

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  1. JMI - Extension Tube 1.25 " dia. x 1.6 " ht

    $55.00
    SKU: JMI-ADPT1EXT

    Wait List - This item is temporarily out of stock.

    Extends the range of low-profile focusers. 1.25″ diameter x 1
  2. JMI - Extension Tube 2 " dia. x 1.5 " ht

    $59.00
    SKU: JMI-ADPT2EXT

    Wait List - This item is temporarily out of stock.

    Extends the range of low-profile focusers. 2″ diameter x 1
  3. JMI - Extension Tube 2 " dia. x 2.5 " ht

    $69.00
    SKU: JMI-ADPT2EXTL

    Wait List - This item is temporarily out of stock.

    Extends the range of low-profile focusers. 2″ diameter x 2
  4. JMI - 2 " Enhanced Extension Tube (2.13 ")

    $85.00
    SKU: JMI-ADPT2X2.1E

    Wait List - This item is temporarily out of stock.

    Enhanced extension tubes include a compression ring and 48mm filter threads. 2" diameter x 2.13" height

  5. JMI - 2 " Enhanced Extension Tube (2.63 ")

    $89.00
    SKU: JMI-ADPT2X2.6E

    Wait List - This item is temporarily out of stock.

    Enhanced extension tubes include a compression ring and 48mm filter threads. See the Adapter Comparison Chart.2" diameter x 2
  6. Optec - AP2.7 x 24tpi Extension Tube Set, 4-piece.

    $115.00
    SKU: OPT-19880

    Wait List - This item is temporarily out of stock.

    Provides ¼” incremental extensions from ½” to 3-¼” Includes ½”, ¾”, 1”, and 1- ½” extensions (#19891 through #19894)AP2
  7. Optec - AP2.7 x 24tpi Extension Tube Set, 5-piece.

    $150.00
    SKU: OPT-19881

    Wait List - This item is temporarily out of stock.

    Includes ½”, ¾”, 1”, 1- ½”, and 3” extensions (#19891 through #19895)AP2
  8. Optec - AP2.7 x 24tpi Extension Tube, 1/2" length.

    $30.00
    SKU: OPT-19882

    Wait List - This item is temporarily out of stock.

    AP2.7 Extension - 1/2" LengthOverall Height: 0.88"  (22.4mm)Clear Aperture: 2.52" (64mm)Weight: 1.0 oz (30 g)Back-focus Usage: 0.50" (12
  9. Optec - AP2.7 x 24tpi Extension Tube, 1" length.

    $30.00
    SKU: OPT-19884

    Wait List - This item is temporarily out of stock.

    AP2.7 Extension - 1" LengthOverall Height: 1.38" (35.0mm)Clear Aperture: 2.52" (64mm)Weight: 1.8 oz (55 g)Back-focus Usage: 1.00" (25
  10. Optec - AP2.7 x 24tpi Extension Tube, 1-1/2" length.

    $30.00
    SKU: OPT-19885

    Wait List - This item is temporarily out of stock.

    AP2.7 Extension - 1-1/2" LengthOverall Height: 1.87"  (47.5mm)Clear Aperture: 2.52" (64mm)Weight: 2.4 oz (70 g)Back-focus Usage: 1.50" (38
  11. Optec - AP2.7 x 24tpi Extension Tube, 3" length.

    $40.00
    SKU: OPT-19886

    Wait List - This item is temporarily out of stock.

    AP2.7 Extension - 3" LengthOverall Height: 3.38" (85.8mm)Clear Aperture: 2.52" (64mm)Weight: 8.2 oz (230 g)Back-focus Usage: 3.00" (76
  12. Optec - AP2.7 knurled female threaded retaining ring, 1/10" thick.

    $15.00
    SKU: OPT-19888

    Wait List - This item is temporarily out of stock.

    AP2.7 Retaining RingOverall Height: 0.10" (2.5mm)Outside Diameter: 3.0" (88.9mm)Clear Aperture: 2.69" (68 mm)Weight: 0
  13. Starlight Instruments - Riser, 2.0 " Diameter, adds 3.75 " to Height

    $85.00
    SKU: R20-3.75

    Wait List - This item is temporarily out of stock.

    Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

  14. Starlight Instruments - Riser, 2.0 " Diameter, adds 0.65 " to Height

    $60.00
    SKU: R20-0.65

    Wait List - This item is temporarily out of stock.

    Riser, 2.0" Diameter, adds 0.65" to HeightRisers attach to the base of a focuser to 'lift' the entire focuser
  15. Starlight Instruments - Riser, 2.0 " Diameter, adds 1.0 " to Height

    $65.00
    SKU: R20-1.0

    Wait List - This item is temporarily out of stock.

    Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

  16. Starlight Instruments - Riser, 2.0 " Diameter, adds 1.4 " to Height

    $65.00
    SKU: R20-1.4

    Wait List - This item is temporarily out of stock.

    Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

  17. Starlight Instruments - Riser, 2.0 " Diamter, adds 2.75 " to Height

    $75.00
    SKU: R20-2.75

    Wait List - This item is temporarily out of stock.

    Risers attach to the base of a focuser to 'lift' the entire focuser. Unless otherwise noted, the end of the riser which attaches to the OTA will be the same thread and diameter as the original focuser body.

  18. Vixen - Extension Tube R200SS

    Regular Price: $15.95

    You Pay: $14.36

    SKU: 2961

    In stock

    Adds 20mm of length to the R200SS Optical tube and allows attachment of a 42mm T thread to 43mm accessory. This is customarily used with optional item number 3523 for eyepiece projection photography.

  19. iOptron - iEQ45 Extension Bar

    $68.00
    SKU: IOP-8026

    Wait List - This item is temporarily out of stock.

    This is the extension bar for the iEQ45. This attaches to the original bar and will create more counterbalance weight. The original counterweight also attaches to this extension bar.

  20. Orion - 1.25" Standard Tele-Extender

    $29.99
    SKU: ORI-05125

    In stock

    Orion tele-extenders permit high-magnification "eyepiece projection" photography of the Moon and planets with a Schmidt-Cassegrain telescope. Orion tele-extenders are designed to fit all Celestron and Meade Schmidt-Cassegrain telescopes.

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