Lenses like Nikon's Z 50mm F1.2 S are bigger, heavier, more costly and more complex than older F1.2 designs. But why? First, some optical history Back in the days when men were iron and ships were wood, there were some things you could rely on. One of those things was your wide-aperture prime lens was a relatively simple double-guass design. Pre-1900, lens designers had already created five of the six lens types that are the basis of what we use today. (The retrofocus lens didn't come around unt...
Lenses like Nikon's Z 50mm F1.2 S are bigger, heavier, more costly and more complex than older F1.2 designs. But why? First, some optical history Back in the days when men were iron and ships were wood, there were some things you could rely on. One of those things was your wide-aperture prime lens was a relatively simple double-guass design. Pre-1900, lens designers had already created five of the six lens types that are the basis of what we use today. (The retrofocus lens didn't come around unt...
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