Cloud Break Optics

TCF-Leo Low Profile Focuser

TCF-Leo Low Profile Focuser - Main image
$926.9 $1495 In stock

Category: Focusing

Optec engineers have developed a low profile, yet extremely robust 3-inch focuser for telescope installations where back-focus is at a premium. With the width of a typical 1-1/4" eyepiece, the TCF-Leo provides a unique focusing solution for the Celestron EdgeHD and other telescopes with limited flange-to-focus distances. The proven FocusLynxcontrol system operates the TCF-Leo and can be extended to provide control for a second focuser and supports the optional 802.11 WiFi and Hand Control accessories .

The unique shape of the TCF-Leo is designed to fit neatly between the lock and focus knobs of the Celestron EdgeHD C-11 telescope OTA. With a center-to-edge distance of about 2.2-inches (55mm), the TCF-Leo works exceptionally well with Innovation Foresight 's On-Axis Guider, providing clearance for large cameras and filter wheels above either of the flat edges of the TCF-Leo. Additionally, the TCF-Leo' s 3600 receiver fits directly on to the large 3-inch port of the Perseus Instrument Selector for ultra-fine focus of a large format camera.

The TCF-Leo supports several draw tube options including the Optec 3000 dovetail, a DSI 3.5" receiver, and a 3-inch split clamp for Wynne Correctors. You can select the option that works best for your system.

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Customer Reviews (4.6 / 5 · 5 reviews)

Avery ★★★★★

The 3-inch profile is incredibly slim for a focuser this solid—I had just enough room in my imaging train. It locks onto my setup without any noticeable flexure, which makes fine-tuning focus much easier than my old unit. Definitely worth the upgrade for anyone squeezed on back-focus distance.

Brian ★★★★★

I was worried about clearance with my imaging train, but this focuser's profile is so thin it gave me back almost two inches of spacing. The 3-inch opening handles my wide-field setup without any vignetting, and the focus action is butter-smooth right out of the box.

Ella T. ★★★★★

The build quality on this 3-inch focuser is incredible—it feels solid without adding any extra length to my setup. I was able to dial in sharp focus on my CCD camera immediately, and the low profile design really saved me precious back-focus space.