Here is a unique adapter from Blue Fireball that effectively does the work of two adapters in one. In many telescope configurations, the focal plane is extended (pushed out) by the use of some accessories. Reaching focus with a camera for imaging applications then requires an extension tube. The typical solution is to use an extension tube followed by the prime focus adapter. With this adapter, you get a 2" prime focus adapter and a 40mm extension tube in one piece, thus allowing you to overcome additional out-focus travel requirements.
The 2" barrel slides into 2" focusers in telescopes and diagonals. The male T-thread at the other end allows you to attach a camera (with an appropriate T-ring, sold separately) for prime focus photography. The 2" barrel is threaded to accept standard 2" filters.
Total length = 80mm, Extension provided is 40mm (1.57"), T2 thread outside. Weight = 4.1oz.
Apr 2, 2018
Perfect.Pros: Cons: Comments:
Needed a 2" prime focus adapter without an extremely long nosepiece and this fit the bill perfectly. Well made, finished, and 2" filters screw into it without a problem.....something I have had issue with on other make adapters (None sold from Agena)
This review was provided courtesy of AgenaAstro.comAug 5, 2017
M42 Screw adapter to 2" focusing tube from Agena!Pros: Cons: Comments:
My 3rd similar adapter to connect cameras to the telescope drawtube. Precision machined and finished. Really like the 4" model too.
This review was provided courtesy of AgenaAstro.com
mostubb46 New Member
- Skill Level
- Time with Product
Mar 12, 2014
- User Notes:
- Review by mostubb46 of NWA Arkansas.
Very Sturdy AdapterPros:
Strong Construction,It's Great When Needed,Easy to Use,LightweightCons: Comments:
I have never been dissatisfied with the Blue Fireball products from Agena Astro. I have never been dissatisfied with their service, either. This adapter, with the 40mm extension, which I need, serves its purpose very well. Agena Astro has good products with good value pricing and shipping is usually free, as well. Thanks, Agena, for serving the amateur astronomy community so well!!
This review was provided courtesy of AgenaAstro.comFeb 24, 2012
Want to reduce flex? Look no further.Pros:
Lightweight,Prcise crafting,Threaded at both endsCons:
Want to reduce flex? Great alternative to CCD nosepiece.
I am a user of QHY8 camera with stock nosepiece. Problem with QHY8 is that this nosepiece is short. Rigid mounting of the camera is difficult if not possible at all. This adds up to the set up flex and produces star trails during longer exposures. In addition the camera may go loose and drop. This is least welcome event but happened to me twice. Considering all these I was looking to replace stock nosepiece and found Blue Fireball's T Thread Camera Adapter that suited my need 100%.
Build and finish of the adapter is very good. You get anodized, aluminum piece that is perfectly crafted. The tube has external thread that ideally fits QHY8 and the internal one for filter mounting. I use Orion 2" filters that screw in with no effort. My camera is safe now and the flex got reduced noticeably. Can recommend with no hesitation to anyone that looks for similar piece of equipment.
This review was provided courtesy of AgenaAstro.comSort by