Starlight Instruments 2.0" Adapter for Takahashi Accessories

You would thread the male M56x0.75 end of this adapter directly into the female threads on your Takahashi flattener. The entire assembly then slides into the 2.0" drawtube of your Feather Touch focuser and is secured by the focuser's compression ring or thumbscrews, creating a secure, threaded link where it matters most—at the corrector.

The key advantage is the threaded M56x0.75 connection. A generic nosepiece relies on thumbscrews to hold an accessory, which can introduce tilt. This adapter threads directly into the accessory, ensuring perfect alignment and preventing any possibility of sag or movement during an imaging session.

Yes, if the specific FSQ-106ED accessory you are using has a female M56x0.75 thread for its input connection. Many Takahashi camera angle adjusters and flatteners use this standard. Always check the thread specification of your particular accessory to confirm compatibility.

This adapter is designed to be as low-profile as possible while ensuring a secure connection. However, like any adapter, it does consume a small amount of back focus. For most systems this is negligible, but it's a factor to consider if your imaging train is already at its back focus limit.

While primarily designed for creating rigid imaging trains, you could use it if you have a visual accessory, like a diagonal or eyepiece holder, that terminates in a female M56x0.75 thread. Its main purpose, however, is to provide the stability required for astrophotography.

The product specifications do not indicate that this adapter has internal M48 threads for 2" filters. It is designed solely to adapt the M56x0.75 accessory thread to a 2.0" drawtube opening.