If you’re shooting with a small wide-angle refractor, you want a focus ring that runs smoothly and stays in place when the camera is attached. With this Astro-Tech 65mm focus ring adapter, you can attach a 2-inch Feather Touch focus ring to your tube.
The adapter from Starlight Instruments replaces the original connection between the tube and the focus. Small refractors of 65 mm are widely used for photography of large nebulae and the Milky Way. You can find more of these tubes at telescopes for astrophotography.
Check beforehand whether your Astro-Tech 65 mm has the same connection, because small refractors often come in several versions. Keep the lens covered while changing the focus lens and check your distance from the sensor afterwards. If you work with a adjustable reducer-flattener, Then set that distance again.
To focus precisely with the camera, there is a Bahtinov mask tailored to your tube.
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