What is the purpose of the PrimaLuceLab ESATTO 3" adapter for Borg telescopes?
This adapter allows you to remove the original focuser from a Borg 90FL or 107FL f/3.9 telescope and replace it with the heavy-duty PrimaLuceLab ESATTO 3" robotic focuser. This provides a significant upgrade in focusing precision, automation, and load capacity for astrophotography.
Is the installation of this ESATTO 3" adapter reversible on my Borg 90FL?
Yes, the installation is reversible. The adapter is designed to mount the ESATTO 3" by removing the telescope's original focuser. You can reinstall the original focuser at any time by reversing the steps.
Will I need to buy new adapters for my camera after installing the ESATTO 3" on my Borg 107FL f/3.9?
No. This adapter system is specifically designed so that you can use the same photo adapters that you already use with your standard Borg focuser. This ensures you can reach focus with your existing imaging train without purchasing additional components.
Does the PrimaLuceLab adapter for ESATTO 3" work with telescopes other than the Borg 90FL and 107FL?
No, this adapter is custom-engineered specifically for the optical tube and reducer/flattener threads of the Borg 90FL and 107FL f/3.9 models only. It will not fit other telescopes.
What are the main benefits of using this adapter to put an ESATTO 3" on my Borg telescope for imaging the Andromeda Galaxy (M31)?
For a large target like the Andromeda Galaxy (M31), maintaining a flat, focused field is critical. Upgrading to the ESATTO 3" using this adapter provides two key benefits:
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Higher Payload Capacity: It securely holds a heavy imaging train (large sensor camera, filter wheel, OAG) without flexure, which is common with stock focusers.
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Automated Focusing: It allows you to use software to automatically compensate for focus shift due to temperature changes during a long imaging session, ensuring consistently sharp stars across all your exposures.
How does the two-ring design of the PrimaLuceLab adapter ensure stability?
The two-ring design separates the two main connection points. One ring secures the entire focuser assembly to the telescope tube itself, while the second ring secures the optical elements (reducer/flattener) within the drawtube. This division of tasks ensures that both the mechanical and optical connections are rigid and perfectly aligned.
