Explore Scientific FCD100 Series Refractor Telescope

The HOYA FCD100 glass is a premium extra-low dispersion material that offers superior color correction compared to standard ED glass. It effectively eliminates chromatic aberration, which means you will see crisp, high-contrast images without the purple fringing often found around bright stars or planetary edges.

It is designed for both. The air-spaced triplet design provides the optical precision required for deep-sky imaging, while the robust 2.5-inch HEX focuser is engineered to support the weight of heavy camera payloads without slipping or sagging.

The optical tube assembly weighs 18 pounds. Because of its focal length of 952mm and the weight of the tube plus imaging gear, you will need a sturdy equatorial mount capable of handling a payload of at least 25 to 30 pounds to ensure stability during long exposures.

Yes, the HEX focuser is designed to be versatile. It provides a stable platform for standard 2-inch and 1.25-inch eyepieces and diagonals, and its hexagonal design offers better rigidity than traditional round focusers when you are locking down heavy cameras.

The telescope comes with an integrated, retractable dew shield, which helps prevent condensation from forming on the objective lens during shorter sessions. However, if you live in a humid climate or plan on imaging for several hours, you may still want to add a dedicated dew heater strip.

At f/7.5, this telescope is considered a 'slower' system, which is excellent for high-resolution planetary and lunar observation. While it requires longer exposure times for deep-sky objects compared to a fast f/5 or f/6 telescope, it is generally more forgiving with focus and collimation.