Cloud Break Optics

2" Adapter for 2.7" Focuser to use SCT Accessories (ADA204)

2" Adapter for 2.7" Focuser to use SCT Accessories (ADA204) - Main image
$33.58 $46 In stock

Category: Focusing

Description

If you have thread-on accessories for an SCT and own one of the Astro-Physics refractors, a Ritchey-Chretien with an Astro-Physics focuser or built your scope with the Astro-Physics 2.7" focuser, you will appreciate this item. This adapter threads into the Astro-Physics drawtube and has SCT threads on the accessory side.

For owners of larger Meade SCT's with the 3.25" rear cell, simply thread this adapter into Astro-Physics' ADASCTLM27 or ADASCTLC27 and you no longer need your Meade or Celestron 2" visual back.

The ADA204 is also popular with owners of Finger Lakes Instrumentation CCD cameras. It can be used with several configurations of Astro-Physics CCD Adapters and 2.7" Extensions to reach proper back focus distances for the particular combination of components you are using.

This adapter has a net spacing distance of 0.3" (7.6 mm).

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Customer Reviews (4.8 / 5 · 5 reviews)

Natalie ★★★★★

The threads on this adapter are surprisingly smooth and precise, making it easy to attach my SCT accessories without any wobble. It perfectly bridges my 2.7" focuser to use my old 2" filter wheel and eyepieces, saving me from buying all new gear. A solid, well-machined piece that does exactly what i

Ellie G. ★★★★★

I was worried the thread alignment would be fiddly, but it screwed on smoothly to my 2.7" focuser and now I can use all my old SCT accessories without any adapters slipping.

Chloe ★★★★★

Finally, a straightforward way to attach my SCT accessories to the 2.7" focuser—the threading is precise and it screws on smoothly without any wobble. It’s solidly built and does exactly what it’s supposed to, no fuss.