Blue Fireball 2" Spacer Ring with 0.25" Extension # S-2A
Brand | Blue Fireball |
Part Number | S-2A |
Availability | available |
Share |
Product Info
Manufacturer Description
New version with longer threads
Description/Uses:
- 2" extension ring/barrel spacer
- Provides 0.25" (6.4mm) of spacing *
- Allows you to securely set or vary the spacing between 2" components
- Useful for making eyepieces parfocal or to change the reduction factor of focal reducers
- Has standard 2" filter threads (male on one side and female on the other)
Features:
- Precision machined from aluminum and black anodized
- Threaded to accept standard 2" astronomy filters
Specifications:
- Total Length = 0.39" (9.4mm)
- Extension Provided = 0.25" (6.4mm) *
- Length of External Male Thread = 0.12" (3mm)
- Thread Specification (External Thread) = M48x0.75 Male
- Length of Internal Female Thread = 0.20" (5mm)
- Thread Specification (Internal Thread) = M48x0.75 Female
- Maximum Outer Diameter = 2" (50.8mm)
- Weight = 0.2oz (6g)
Additional Information:
* To get a spacing of 0.25" with this spacer, your accessory must fit completely into the female 1.25" thread of this adapter. The length of the female T thread is only 0.20". If your accessory has a male 2" thread longer than this, then it will not screw in fully and the extension provided will be greater than 0.25".
Reviews
-
Jul 19, 2019
Those misc pieces
Pros: Cons: Comments:Some folks might have their own machine shops, but if you don't, then let Agena be yours! Finding those little misc parts to get hardware to connect, focus, etc is easier with Agena.
Bottom Line: Would you recommend this item? Yes
Purchased the spacer ring to get eyepiece to focus at same distance as camera, ie minimize focusing changes between observing and imaging. The Blue Fireball hardware is excellent quality.This review was provided courtesy of AgenaAstro.com
Feb 4, 2019GREAT CAMERA TO COMA CORRECTOR ADAPTER RING
Pros: Cons: Comments:I PURCHASED AGENA'S 2" OUTSTANDING COMA CORRECTOR PRIMARILY FOR VISUAL VIEWING. I HAVE NOT GOTTEN BACK INTO ASTROPHOTOGRAPHY BUT ACCORDING TO DIRECTIONS AND ACTUAL FITTING OF THIS RING TO THE COMA CORRECTOR, WITH A 'T' RING IT SHOULD BE A PERFECT FIT FOR YOUR CAMERA TO THE CC. BECAUSE I HAVE YET TO USE THE RING I CAN ONLY SAY THAT IT GETS 5 STARS BASED ON THE EXCELLENCE OF THE GSO COMA CORRECTOR THAT IT CAME WITH!
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Feb 20, 2017Spacer Ring
Pros: Cons: Comments:Nice spacer. Clean Threads. Nice and black. Used to place the two coma corrector at the right spot in the focuser on a Z10. From what my eyes can tell, seem like this is just the right length for 1.5" eyepieces ( the 2-1.5" adapter adds 10mm) and for 2" you need to use a parafoculizing ring or another roughly 10mm spacer.
Bottom Line: Would you recommend this item? Yes
High quality and works perfect.This review was provided courtesy of AgenaAstro.com
Dec 24, 2016Good parts...Excellent service!
Pros: Cons: Comments:The title sums it up. I have purchased several of the Blue Fireball products from Agena, and they are always of uniformly good quality. And Agena's service is always second to none. Fast shipping. Never disappointed.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Jan 23, 2016I'd buy it again
Pros:Compact,Easy to Use,Lightweight
Cons: Comments:I use it to get the desired backfocuse when using the Astro-Physics focal reducer with my 9.25 EdgeHD
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Oct 9, 2015Perfect for the GSO Comma Corrector
Pros:Strong Construction,Easy to Use,Lightweight
Cons: Comments:This spacer is perfect for setting my GSO Comma Corrector in the proper position in the focuser for my two F5 Newtonians.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Jun 27, 2015Just buy it
Pros:Lightweight,Easy to Use,Strong Construction,Accurate
Cons: Comments:You got this far because you need a spacer this long. It threads easily and securely.
Bottom Line: Would you recommend this item? Yes
Like most threaded adapters, a little bit of wax burnished into the threads will minimize galling.This review was provided courtesy of AgenaAstro.com
Jesús Muñoz New Member
- Skill Level
- Unknown
- Time with Product
- Unknown
- User Notes:
- Review by Jose of Queretaro, Mexico.
May 30, 2014Great spacer
Pros:Accurate,Well Made
Cons:None
Comments:This spacer ring is used to extend my adapter so that some eyepieces can't hit my filters. Very useful and well made
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
May 31, 2013I would buy this product again
Pros:Lightweight,Strong Construction
Cons:No
Comments:I use this spacer to get the right distance in my optical system an the telescope, it is fitting perfect and the stars are now nice round and clear on my images for my research.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Feb 8, 20132" Spacer
Pros:Strong Construction,Accurate,Lightweight,Compact,Easy to Use
Cons: Comments:I screw this adapter into my 2" to 1-1/4" eyepiece adapter to get more distance from the 2" filter that screws into the spacer ring when inserting eyepieces. In my case some of my eyepieces were coming close or even touching the filter glass without the spacer ring. This adapter takes care of that problem.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
May 31, 20113rd FTR
Pros:Strong Construction
Cons: Comments:We always see 14mm, 28mm FTR Rings and Baader Filter to change focal lenght at Hyperion Eyepieces. The height is the same as Baader Filter and can be used like one. It don't creates glow inside eyepiece and are strong enough like a original FTR.
Bottom Line: Would you recommend this item? YesThis review was provided courtesy of AgenaAstro.com
Sort by