Mirror lenses have split opinions for decades with most people falling either for or against, and the design is certainly not ideal for every genre of photography. Despite the contrasting market ...

However, most larger instruments – from backyard scopes for the more serious amateur to giant mountain-top tools to explore the universe – now adopt Newton’s method of curving mirrors (reflectors) ...

Its EOS R camera system drops an optical viewfinder for an EVF and works with an all new lens system. The upgrade is worth it. Canon's second-generation EOS R5 and R6 offer much smarter autofocus ...