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Blue Fireball End Cap (External) with SCT Female Thread # D-04

4.9 (19 Reviews) Read Reviews Write Review
Brand Blue Fireball
Part Number D-04
Availability available

Product Info

Manufacturer Description

Description/Uses:

  • SCT thread end cap (standard 2" SCT thread)
  • Use as end cap for the rear cell of your Schmidt-Cassegrain telescope, or as an end cap for other SCT threaded accessories

Features:

  • Precision machined, black anodized aluminum
  • Knurled on the outside for easier gripping/turning

Specifications:

  • Weight = 0.8oz
  • Total length = 10mm (0.4")
  • Thread = 2" x 24TPI female SCT thread

Reviews

4.9 (Based on 19 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Tim H.
      1513262863
      Dec 14, 2017

      5.0 Blue Fireball SCT End Cap

      Pros:

      Cons:

      Comments:

      I know it's just an end cap, but it is well made, and fits perfectly. Does what it's supposed to.

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

      This review was provided courtesy of AgenaAstro.com

    2. Guest

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      Review by Steve I.
      1512438481
      Dec 4, 2017

      5.0 Great product

      Pros:

      Cons:

      Comments:

      Great product

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

      This review was provided courtesy of AgenaAstro.com

    3. Guest

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      Review by Ronald S.
      1508902359
      Oct 24, 2017

      5.0 It Fits

      Pros:

      Cons:

      Comments:

      It fits and it is well made.

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

      This review was provided courtesy of AgenaAstro.com

    4. Guest

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      Review by Dave S.
      1506258754
      Sep 24, 2017

      5.0 Must-have for SCT

      Pros:

      Cons:

      Comments:

      This is very nicely made of black finished aluminum, and a must-have to safeguard the rear opening of any Schmidt-Cassegrain telescope when you put it away. Gotta wonder why they call it a blue fireball, though.

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

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Gregory B.
      1505389007
      Sep 14, 2017

      4.0 Fits my old orange C8

      Pros:

      Cons:

      Comments:

      I have a Celestron C8 that I purchased in 1982 or 1981. I upgraded to a 2" diagonal that screws directly onto the scope like a visual back. I needed a cover for the back when it is in the case. This fit perfectly. It is high quality metal. Seems a little pricey, but I don't know what it costs to manufacture.

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

      This review was provided courtesy of AgenaAstro.com

    6. Guest

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      Review by Tavi
      1502302905
      Aug 9, 2017

      5.0 Fits perfectly my Celestron EdgeHD CGE 8" telescope

      Pros:

      Cons:

      Comments:

      Perfect! Got the smallest case, Celestron Carrying Case for 4/5/6" NexStar Telescope, to fit my Celestron EdgeHD CGE 8", and the adapter it came with the scope was on the way, so had to remove it, but also needed to cover the whole. This was a perfect fit.

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

      This review was provided courtesy of AgenaAstro.com

    7. Guest

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      Review by Stanley R.
      1499044249
      Jul 2, 2017

      5.0 End Cap for SCT

      Pros:

      Cons:

      Comments:

      Works well. Good threads. Replaces lost unit.

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

      This review was provided courtesy of AgenaAstro.com

    8. nickc

      nickc New Member

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      Review by Nicholas C.
      1497103295
      Jun 10, 2017

      5.0 C8 SCT End Cap

      Pros:

      Cons:

      Comments:

      I store my C8 SCT without any attachments and this part screws in nicely to the optical tube assembly. Exactly what I wanted.

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

      This review was provided courtesy of AgenaAstro.com

    9. Guest

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      Review by Henry P.
      1495883398
      May 27, 2017

      5.0 Harder to lose

      Pros:

      Cons:

      Comments:

      Although a little pricey, this little piece is much harder to lose accidentally than plastic/rubber pieces that fly off silently into the darkness.

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

      This review was provided courtesy of AgenaAstro.com

    10. Guest

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      Review by Charles S.
      1494902103
      May 15, 2017

      5.0 Great product, great price, highly

      Pros:

      Cons:

      Comments:

      Great product, great price, highly recommend it.

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

      This review was provided courtesy of AgenaAstro.com

    11. Guest

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      Review by Michael H.
      1494568596
      May 11, 2017

      5.0 Well made.

      Pros:

      Cons:

      Comments:

      Well made.

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

      This review was provided courtesy of AgenaAstro.com

    12. Guest

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      Review by BONNIE C.
      1492801666
      Apr 21, 2017

      5.0 Good Cap for C8 SCT - Blue Fireball End Cap SCT Female Thread

      Pros:

      Cons:

      Comments:

      Strong and finely milled. Perfect cap for the old C8 Celestron orange tube SCT.

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

      This review was provided courtesy of AgenaAstro.com

    13. Guest

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      Review by Jason M.
      1491802620
      Apr 9, 2017

      5.0 Serves its purposes, no more no less

      Pros:

      Cons:

      Comments:

      Exactly as advertised: aluminum cover for the threads on the back of a mid-size SCT. In my application, this was for a Celestron C8 (SP model). Nothing fancy, but it works very well. Nice knurled edge, no manufacturer logos or anything. Simple, clean design

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

      This review was provided courtesy of AgenaAstro.com

    14. Guest

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      Review by James F.
      1483046058
      Dec 29, 2016

      5.0 Reduces clutter and weight on back end of C8 HyperStar

      Pros:

      Cons:

      Comments:

      When a C8 becomes a HyperStar, the Crayford focuser and SCT adapter become useless. This cap reduces clutter and weight.

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

      This review was provided courtesy of AgenaAstro.com

    15. Guest

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      Review by Ken of College Point NY.
      1427587200
      Mar 28, 2015

      5.0 Excellent product for a reasonable price

      Pros:

      Matches My Meade Etx-125,Lightweight,Strong Construction,Easy to Use,Accurate

      Cons:

      Comments:

      Well made, knurled sides make it easy to grip/turn, color matches my Meade ETX-125, better looking/less expensive than a Meade LX equivalent.

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

      This review was provided courtesy of AgenaAstro.com

    16. Guest

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      Review by Roybokhade of Michigan.
      1320451200
      Nov 4, 2011

      5.0 The Cap You Should Have

      Pros:

      Cons:

      Comments:

      My Celestron CPC 800 came with a rubber cap that simply (and loosely I might add) slipped over the back of my OTA. I now have a metal cap that screws on, won't fall off and protects my investment.

      It's a must have for anyone who owns a telescope.

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

      This review was provided courtesy of AgenaAstro.com

    17. Guest

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      Review by J of New Mexico.
      1319846400
      Oct 28, 2011

      5.0 Well made cap.

      Pros:

      Strong Construction,Great quality

      Cons:

      Comments:

      Well made SCT cap and fits perfectly. Great alternative to slide-on plastic/rubber caps.

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

      This review was provided courtesy of AgenaAstro.com

    18. Guest

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      Review by OM Photo Fan of Columbus, IN.
      1309910400
      Jul 5, 2011

      4.0 A quality cap for SCT accessory threads

      Pros:

      Lightweight,Easy to Use,Well machined

      Cons:

      A bit expensive

      Comments:

      I used this cap to replace the plastic cap that came with my SCT. The plastic cap was difficult to remove and install, but this machined cap was a breeze to use, due to its accurately machined threads.

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

      This review was provided courtesy of AgenaAstro.com

    19. Guest

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      Review by Astro-Pyrrhos of Toronto, ON.
      1292803200
      Dec 19, 2010

      5.0 Excellent high quality SCT end cap

      Pros:

      Cons:

      Comments:

      This is a great replacement for the standard plastic en cap. High quality.

      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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