Review: Add on lenses for phones are now commonplace, but some are better than others. Sandmarc's 16mm wide angle lens and hybrid filters give you additional control over your image, but are they ...

[IMSAI Guy] presents for your viewing pleasure, a nice video on the topic of optical filters and mirrors. (Video, embedded below) The first optical device is a simple absorption filter, where incoming ...

Wide-field telescopes and eyepieces are best for viewing large nebulae. Dark skies and high altitudes improve visibility. Planning your observations, including target selection and timing, is crucial.

Explore the best wide-angle lenses for the most popular camera systems used for capturing incredible photos and videos of the night sky. When you purchase through links on our site, we may earn an ...

First thing first, despite the ultra-wide angle, Canon’s RF 10-20mm lens is a rectilinear lens, not a fisheye. It features one Super UD element, three standard UD elements, and three aspherical ...