William Optics GranTurismo 71/420 APO OTA

Compact, bright and made for perfect constellations

The William Optics AP 71/420 GT 71 is small in size, but big in performance.You get a bright, clean and colorful image without distracting edges. The triplet lens with FPL-53 glass keeps colors together neatly, keeping stars point-shaped. This makes your photos calmer, sharper and much easier to edit.

For those who like to travel and want sharp images

The GT 71 is light, short and sturdily built. You lift it easily, take it with you without fuss, and set it up in a minute.Under dark skies, you immediately see what this little apo can do: bright star clusters, fine details on the Moon, and a surprising amount of deep-sky.The high contrast reproduction makes planets calm and sharp, and shows structure that is often missed with smaller lenses.

Made for astrophotography

You get a nice flat image, so your camera exposes the entire frame evenly. Full-frame also works fine.
Use the William Optics Flat6AIII flattener/reducer and you get an even faster system. Ideal if you like to shoot short exposure times or if you work under light sky areas.The focuser is strong, smooth and precise. Heavy camera? No problem. You focus without jerking, and you can rotate the whole camera for better framing.

Smart details that make your job easier

The handle incorporates a Vixen-style dovetail so you can easily insert a guidescope.
The Bahtinov mask helps you focus super fast. The clear acrylic lets a lot of light through, so you can focus even on faint stars.

This is why the GT 71 feels so comfortable

He works directly. He behaves stably.
And above all, he provides images that make you curious for more.
For those who want mobile photography and still want top quality, this is a reliable all-rounder that you can use for years without any problems.

Specifications

Optics

Focuser

Mount

Included accessories

General