this post was submitted on 29 Nov 2023
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Why are modern prime lens so big and heavy? (alien.top)
submitted 11 months ago by [email protected] to c/[email protected]
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For example the Nikon Z 50mm f1.2 is 1090 grams, 150mm long, and has a 82mm filter size. The Canon RF 50mm f1.2 is 108mm long, but the other dimensions are similar.

Compare that to a Leica Noctilux 50mm f1.2 with a Techart, Megadap or similar adapter (available for Z and E mounts) for autofocus abilities: 405g lens +150g adapter = 655 grams, 52mm lens + ~11mm adapter = 63mm long and 49mm filter size. A little more than half the numbers in all dimensions.

This link approximately shows the size differece (the M to L mount is indeed smaller than the M to Z or M to E autofocus adapters, but the difference is small)

All of these have the same focal length (50mm), max aperture (1.2), and autofocus. So why do these newer mirrorless lens designs have to be so much bigger and heavier than using an old manual lens with an autofocus adapter? Sure the autofocus speed may not be as fast with an adapter but why can't they design a native autofocus large aperture lens that is tiny like the Leica M lenses. Clearly it is possible to do so.

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[–] [email protected] 1 points 11 months ago

Leica pricing is mostly due to the fact they are produced in Germany and are paying their labourers German wages. They try to portray themselves as super high-end top-of-the-line quality product you should aspire towards, but the closer you start looking into it the sooner you realize it's posturing.

Large portion of Leica products are outperformed by Japanese brands who can do it for 1/10 of the costs in better optical quality while being packed with additional features.

Not saying their products are bad, they are just horribly cost-inefficient.