主题：【求助】打算购机，向晨大请教 -- 鸵鸟快跑

the Canon EF 50mm f/1.4 USM Lens (above center), the Canon EF 50mm f/1.8 II (above left) and the newer Canon EF 50mm f/1.2 L USM Lens (above right).

the 50mm f/1.8 lens feels like a toy. A 5-blade aperture delivers a very harsh background blur quality and flare is a problem for this lens. It delivers only adequate color compared to the two other 50s. AF is noisy and the MF ring is barely useable - there is no FTM and no distance window or markings.

The Canon EF 50mm f/1.4 USM Lens falls in the middle of the three 50s I am discussing in many ways. It has the middle price, the middle build quality, the middle weight, the middle size ... It delivers the middle background blur quality - much better than the f/1.8 but not as good as the f/1.2.