William Optics Fluorostar 120/780 APO Gold OTA

Fluorostar 120 in gold: triplet with lanthanum glass

The William Optics Fluorostar 120 Gold delivers a calm, clear, and true-to-color image. The triplet lens made of FPL-53 and lanthanum glass keeps stars point-like without chromatic aberration: double stars appear beautifully separated, and cloud bands and ring structure are immediately noticeable on Jupiter and Saturn.

Lots of light for deep-sky and planets

The 120mm aperture at a 780mm focal length (f/6.5) captures a lot of light: short exposures for nebulae and galaxies, and enough resolution for serious planetary work, visually and photographically. The Losmandy dovetail securely mounts the tube on a medium-duty equatorial mount, the Vixen/Sky-Watcher accessory shoe accepts the guidescope, and the Bahtinov mask makes focusing precise.

In the box

• Optical tube Fluorostar 120/780 triplet, gold
• Losmandy-style dovetail
• Handle
• Vixen/Sky-Watcher accessory shoe
• Bahtinov mask
• Padded transport bag

Featured accessories

The William Optics Flat68III flattener (€869) levels the field to full-frame; a UniGuide 50mm guidescope (from €189) enables long exposures.

For whom yes, for whom no

For: serious astrophotographers and visual observers looking for a large triplet that can handle both disciplines. Not for: those seeking the exact same optics where color doesn't matter; the Red and Space Gray versions are identically equipped.

Specifications

Unsure about the right tube for your camera and mount? The telescope selection aid helps you choose. Also view all Refracting telescopes and the full range of William Optics.