Leica’s legendary M-Lenses have got quite a reputation. Take the Leica Summilux-M 35 f/1.4 for example. It's been around since 1961, back when it was the fastest wide-angle lens out there.

Artra Lab Similar 35mm f/1.4的原型产品是Leica 35mm f/1.4 Summilux-M Steel Rim，按照官方说法，这款镜头是历时两年制成的，镜筒主体采用铝合金材料，通过CNC ...

The Nikon F and F2 legitimized the 35mm film format for working photographers, creating the first pro-level body supported by an extensive system of lenses and accessories.