William Optics SpaceCat 61 Apo - 61 mm f/4.9 Flatfield Refractor for Astrophotography

William Optics SPACECAT 61 mm f/4.9 Astrograph

The William REDCAT 61 is a successful model and has found a following. The SPACECAT is identical in construction to the REDCAT, but is supplied in an elegant silver look.

The apo is aimed at astrophotographers and nature photographers who are looking for a portable and powerful manual telephoto lens. Focusing works internally, as with many telephoto lenses, but via knobs with an additional fine focus knob (dual speed), as with telescopes. The Pezval design offers a very good correction and illumination for all cameras up to full frame format.

Photography with the SpaceCat 61 apo:

Astrophotography

With 300 mm focal length and fast f/4.9, short exposure times are possible. The working distance of 55 mm allows the use of all common astro cameras, system cameras and DSLR/SLR cameras. The fine focusing allows a precise focus, the rotation the selection of the suitable image section. The supplied Bahtinov mask helps with focusing and is integrated in the objective cap.

Countryside photography and animal photography

The SpaceCat 61 is also perfect for, for example, photographing animals. Internal focusing allows you to focus without shifting the weight, and therefore also without changing the position. The image field is thus not altered. The image quality will impress you. A photo tripod is necessary for use.