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Blue Fireball C / CS Mount Spacer Ring with 1" Extension # S-CD

5.0 (1 Reviews) Read Reviews Write Review
Brand Blue Fireball
Part Number S-CD
Availability available

Product Info

Manufacturer Description


  • C / CS Mount thread extension ring/barrel spacer
  • Provides 1" (25.4mm) of spacing
  • Allows you to securely set or vary the spacing between C / CS thread components
  • Has standard C / CS threads (male on one side and female on the other)


  • Precision machined from aluminum and black anodized


  • Total Length = 1.12" (28.6mm)
  • Extension Provided = 1" (25.4mm)
  • Length of External Male Thread = 0.12" (3.1mm)
  • Thread Specification (External Thread) = 1"x32TPI Male
  • Length of Internal Female Thread = 0.13" (3.2mm)
  • Thread Specification (Internal Thread) = 1"x32TPI Female
  • Maximum Outer Diameter = 1.25" (31.7mm)
  • Weight = 0.9oz (26g)

Additional Information:
* To get a spacing of 1" (25.4mm) with this spacer, your accessory must fit completely into the female C / CS thread of this adapter. The length of the female C / CS thread is 0.13" (3.2mm). If your accessory has a male C / CS thread longer than this, then it will not screw in fully and the extension provided will be greater than 1".


5.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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      User Notes:
      Review by Hilbily of VA.
      Feb 20, 2015

      5.0 Works Great!


      Accurate,Easy to Use,Compact




      Works Great on my focal reducer

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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