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Why are really good lenses so cheap?

The reason why lenses are really cheap is:

1, Zhenshanneng lens is Canon's RF card port lens, which is positioned as an entry-level large aperture manual focusing lens, so the price is relatively low.

2. The aperture linkage of Zhenshanneng lens adopts mechanical linkage structure to communicate with the fuselage, so its manufacturing cost is relatively low.

3. Quan Huafu F 1.0 manual focusing standard lens is realized by GA lens, so the price is relatively low.

4. Shenshanneng lens is a Fuji X bayonet lens, which is optimized for the Fuji X bayonet sensor, so the price is relatively low.