Why upgrade the stock Takahashi FSQ-106ED focuser to this Feather Touch?
The primary reasons for upgrading are lifting capacity and focusing precision. The Starlight Instruments focuser supports an 18-20 pound imaging train with its rack and pinion design, eliminating sag and image shift common with heavy cameras. The 10:1 dual-speed fine focus knob allows for far more precise adjustments than a stock single-speed focuser, which is critical for maximizing the sharpness of the FSQ-106ED's optics.
What is the lifting capacity of this FSQ-106ED focuser?
This 3.5" Feather Touch focuser has a tested lifting capacity of 18-20 pounds. This is more than sufficient for a complete, heavy astrophotography setup including a large sensor cooled camera, a multi-position filter wheel, and an off-axis guider.
Can I rotate the Starlight Instruments focuser on my FSQ-106ED for framing?
Yes. The focuser features a 360-degree locking collar. You can loosen the collar, rotate your entire imaging train to the desired orientation for framing your target, and then tighten it to lock the position securely without losing focus or introducing tilt.
How does the 18-20 pound capacity handle a heavy imaging train on the FSQ-106ED?
The 18-20 pound capacity, combined with the rack and pinion drive, ensures that even a heavy setup remains rigid throughout an imaging session. This prevents the drawtube from sagging as the telescope tracks across the sky, maintaining perfect collimation and focus from horizon to horizon. This is a crucial upgrade for anyone using modern, heavy astrophotography equipment.
When imaging the faint dust in the Pleiades (M45) with my FSQ-106ED, how does the 10:1 fine focus help?
Imaging faint, low-contrast details like the nebulosity around the Pleiades requires absolutely critical focus. The 10:1 fine focus reduction allows you to make extremely small, controlled adjustments to the focus point. This lets you dial in the tightest possible stars, which in turn maximizes the contrast and visibility of the faint dust lanes in your final image.
Do I need a separate adapter to attach this Focuser Kit to my FSQ-106ED?
Yes, this product is the focuser body itself. To mount it on your FSQ-106ED, you will need to select the appropriate tube adapter ring. Additionally, you will need to choose an end cap (e.g., a 2" compression ring) to connect your eyepieces or camera. These items are selected separately to allow for customized configurations.
