List of products by brand William Optics

This finderscope and guidescope boasts a special rail designed for effortless attachment to the handles of William Optics apochromats.

This finderscope and guidescope features a specialized rail for easy attachment to the handles of William Optics apochromats.

The William Optics Pleiades 68 mm APO is a flagship model tailored for professional astrophotography, representing the pinnacle of innovation in compact astrographs. Combining advanced optical design with top-tier construction, the Pleiades series sets a new standard for portable telescopes on the market.

The William Optics Pleiades 111 mm APO is a flagship telescope designed for professional astrophotography. As part of the renowned Pleiades series, this model integrates the latest advancements from William Optics, setting a new standard in the compact astrograph market.

The AP 71/350 offers a remarkable balance of compact size, affordability, and superior optical quality, making it an excellent choice for both astronomy and nature photography. Its optical system is based on a Petzval design with 4 elements in three groups, utilizing FPL53 and FPL51 glass. This setup delivers a richly colored, fully corrected image field with a diameter exceeding 45 millimeters—ideal for full-frame cameras!

The Cat series astrographs, available in the RedCat and SpaceCat color variants, are designed for simplicity and high performance in nature observation and astrophotography. At the core of these optics lies a Petzval design, featuring four lenses in three elements. This design provides a color-corrected and flat field of view without the need for an external field flattener. Unique features include a field rotator with an integrated filter holder, enabling seamless camera rotation, and a tilting collimator to achieve precise alignment of the image plane with the camera sensor.