Compact, light and instantly ready for strong photos

The William Optics AP 51/250 is made for photographers who want a clear, sharp image quickly.You get a bright tube that weighs little, is easy to carry and gives instant results.The wide image stays tight to the corners, so you spend less time post-processing and more time shooting.

Clear image without fuss

The Petzval design works like a built-in corrector.So you don't have to use a separate flattener.Your image remains flat, color-clean and clear-even with a full-frame camera.So you can just point, focus and start shooting.

Focus quickly and remain stable

The focuser works by rotating around the tube.You turn the ring and the image slides smoothly into focus.Even with a heavy camera, everything remains stable.This prevents shifting or tilt and keeps your shot sharp.

Fits almost any mount

The 110 mm dovetail gives you three mounting options:Arca-Swiss, Vixen or regular tripod screw.This makes it easy to put the telescope on a photo tripod, a star tracker or an astronomical mount.Useful if you often photograph outdoors or travel a lot.

Cleverly designed for convenient operation

The dew hood hides a Bahtinov mask.You take it out, focus precisely, and snap it back.The included bag protects your telescope and makes transportation easy.Everything feels compact, sturdy and well thought out.

For night and detail work

You'll capture large nebulae, star fields and bright deep-sky objects with nice contrast.The fast f/4.9 aperture allows for short exposures, so your photos get clear quickly with less noise.Perfect for those who want to capture a lot in one night.

Specifications

Optics

Focuser

Mount

Included accessories

General