What is the purpose of the M60 to M48 adapter for the ESATTO 2” LP?
This adapter's primary function is to convert the M60 male thread on the PrimaLuceLab ESATTO 2" LP focuser's draw tube to a more common M48 female thread. This allows you to securely attach a wide variety of astrophotography cameras, filter wheels, and other accessories that use the M48 standard.
How does the stop ring on this ESATTO 2" LP adapter work?
The stop ring is a separate, lockable ring on the adapter. You first thread your camera or accessory fully onto the adapter. Then, you can loosen the stop ring, rotate your camera to the desired angle for perfect framing, and then tighten the stop ring to lock it in that position. This prevents the camera from rotating or unthreading during an imaging session.
What is the optical thickness of this ESATTO 2" LP adapter?
The adapter is designed to have a minimal optical thickness to conserve backfocus. With the stop ring in place, it adds a very small amount of length to the optical path. If you remove the stop ring, the optical thickness becomes zero.
Will this adapter let me connect my ZWO camera to the ESATTO 2" LP on my Celestron EdgeHD 8"?
Yes. If your ZWO camera has a standard M48 female thread for connection, this adapter is precisely what you need. It will thread onto the ESATTO 2" LP focuser, which is compatible with the EdgeHD 8", and allow you to securely attach your camera.
I'm trying to frame the Horsehead Nebula (B33) with my rectangular sensor. How does this M60 to M48 adapter help?
The stop ring is essential for this task. After attaching your camera to the ESATTO 2" LP via this adapter, you can rotate the camera body 360° until the long axis of your sensor aligns perfectly with the composition you want for the Horsehead and Flame Nebula region. Once framed, you lock the stop ring, and your composition is secure for the entire imaging session.
Is this adapter required to use a camera with the ESATTO 2" LP?
It depends on your camera's connection thread. The ESATTO 2" LP focuser has an M60 male thread on the draw tube. If your camera or accessory has a matching M60 female thread, you don't need an adapter. However, since M48 is a far more common standard for imaging equipment, this adapter is a necessary component for most setups.