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M65x1 adapter for ARCO 3"
The M65x1 adapter for ARCO 3" provides a rigid, threaded connection between the rotator and your focuser or corrector, consuming just 3.5mm of precious back focus in your optical train.
A 3.5mm Low-Profile M65x1 Interface
This adapter is engineered for a single, critical purpose: to interface the PrimaLuceLab ARCO 3" rotator with any focuser or field corrector that terminates in an M65x1 female thread. Its key design feature is its minimal optical thickness of only 3.5mm, ensuring it can be integrated into complex imaging trains without significantly impacting your back focus budget.
Connecting the ARCO 3" Rotator to Your Imaging Train
By using this adapter, you can add the high-precision framing and de-rotation capabilities of the ARCO 3" to your existing setup. It creates a secure, all-threaded link that prevents flexure and maintains perfect alignment between your corrector and rotator. This is the essential component for unlocking the full potential of the PrimaLuceLab ecosystem on optical systems utilizing the M65x1 standard.
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What is the function of the M65x1 adapter for ARCO 3"?
This adapter allows you to securely connect the PrimaLuceLab ARCO 3" rotator to a telescope focuser or field corrector that has a female M65x1 thread. It acts as the bridge between these two components.
How much back focus does the M65x1 adapter for ARCO 3" consume?
The adapter has an optical thickness of 3.5mm. This is the amount of back focus it will use in your imaging train.
Is this M65x1 adapter required to use the ARCO 3" rotator?
It is only required if the component you are attaching the ARCO 3" to has a female M65x1 thread. The ARCO rotator requires different adapters for different connection standards (like M68, M81, etc.), and this one is specifically for the M65x1 size.
Can I use this adapter to connect my camera directly to a focuser?
No, this adapter is not designed for connecting a camera. It is specifically made to connect the ARCO 3" rotator to a focuser or corrector. You will need other adapters to connect your camera to the output side of the ARCO rotator.
I have a William Optics refractor with an M65 focuser thread. Will this adapter let me attach the ARCO 3"?
Yes, if your William Optics refractor's focuser or dedicated flattener terminates in a standard female M65x1 thread, this adapter is the correct part to install the ARCO 3" rotator into your optical train.
How do I install the M65x1 adapter for ARCO 3" with my Sky-Watcher Esprit telescope?
Many Sky-Watcher Esprit models come with a corrector that has an M65 female thread. You would first unthread any existing adapters from your corrector, then thread the M65x1 adapter for ARCO 3" directly onto the corrector. Finally, you can attach the ARCO 3" rotator to the other side of this adapter.
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| Thread Size |
M65x1 (Male) |
| Compatibility |
ARCO 3" Rotator |
| Optical Thickness |
3.5mm |
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M65x1 adapter for ARCO 3"
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PrimaLuceLab 1-Year Warranty
