That's why we have rounded up our favourite lenses for astrophotography, all wide-angle lenses designed to let in as much light as possible ... overall The Sigma 14mm f/1.4 DG DN Art lens is ...
They’ve often got a whole bunch of electronics built in as well. [Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting.
Chromatic aberration (CA) is the lens' inability to focus on the sensor or film all colours of visible light at the same point. Severe chromatic aberration gives a noticeable fringing or a halo ...
Chromatic aberration (CA) is the lens' inability to focus on the sensor or film all colours of visible light at the same point. Severe chromatic aberration gives a noticeable fringing or a halo ...
Sigma has just announced the pricing and release dates for four new prime lenses for Canon’s EOS R mirrorless cameras. The 16mm, 23mm, 30mm, and 56 mm F1.4 DC DN Contemporary lenses were announced ...