Compact power, razor-sharp images

The William Optics AP 91/540 FluoroStar shows stars as dots.It triplet of FPL-53 and lanthanum glass delivers sharp images and pure colors.Double stars are clearly visible separately.Jupiter and Saturn reveal fine details as if you were close by.

Lots of light, large field of view

The 91 mm opening Captures a lot of light for bright deep-sky and planetary observations.With the Flat6AIII flattener you get a flat image field, even on full-frame cameras.Astrophotography becomes easier and faster, with an even image all the way to the edge.

Accurate focusing, even with heavy equipment

The rack-and-pinion focuser works smoothly and precisely.The 1:10 reduction Helps you focus perfectly.The focuser is rotating, so your camera is always in the right position.The Bahtinov mask Makes focusing easy even for faint stars.

Lightweight and travel friendly

The retractable dew cap Makes the tube compact for transportation.With 4.16 kg take it with you easily when traveling.The telescope has a sturdy handle and Vixen/Skywatcher accessory shoe.

Ideal for astrophotography and planets

Perfect for detailed shots of planets, nebulae and galaxies.Suitable for advanced and compact observatories.

Specifications

Optics

Focuser

Mount

Included accessories

General