William Optics GranTurismo 81/478 APO IV Gold OTA

GranTurismo 81 IV in gold: a triplet for the traveling photographer

The William Optics GranTurismo 81 IV Gold is the light, travel-friendly triplet that delivers truly premium-quality images. The FPL-53 triplet design keeps colors tightly together, ensuring photos remain calm, bright, and sharp, from star fields to the Moon.

Stable and immediately deployable

With an 81 mm aperture and 478 mm focal length (f/5.9), the GT81 combines imaging scale with travel weight. The Bahtinov mask allows for precise focusing, the handle with Vixen dovetail mounts the tube to the mount in seconds, and the soft carrying case provides protection on the go. It's also a visual pleasure, via the 2-inch to 1.25-inch adapter.

In the box

• Optical tube GranTurismo 81/478 IV triplet, gold finish
• Vixen-Style dovetail
• Handle
• Bahtinov mask
• 2 inch to 1.25 inch adapter
• Soft carrier bag

Featured accessories

The William Optics Flat GT flattener (329 euro) flattens the field to full-frame; the UniGuide 32 mm guidescope (159 euro) enables long exposures.

For whom yes, for whom no

Ideal for astrophotographers who want triplet quality in a golden finish, mobile and versatile. Not for those who want to rotate composition without detaching the photo train; the GT81 WIFD has a built-in rotator for that.

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.