Canon Announces EF 50mm f/1.8 STM: Goodbye Plastic Fantastic

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Canon has announced an all new 50mm f/1.8 lens, the EF 50mm f/1.8 STM lens. The previous generation, the 50mm f/1.8 II, was a favourite for many to get into as a cheap, large aperture lens. Its claim to fame was in its price, as it was usually anywhere from a quarter to a third cheaper than comparable Nikon or Minolta or Pentax.  Not surprising, given its all-plastic construction, and a very very noisy internal focus motor.

The new lens is going to change all that: The STM version has the silent and swift stepper motor, which means it will be good for video use as well, in particular with the Dual Pixel AF cameras, and the lens mount is now metal. There aperture diaphragm now uses seven blades, so the old pentagram bokeh at moderately stopped down apertures should be gone too.

At US$130, it is a bit pricier than the last generation, but I think the improvements will be well worth it, if you ask me. I could never stand the high-pitched motor of the 50/1.8 II, and the amount of slop and play in the plastic construction didn’t help my perception of it.

The new lens will ship sometime this month.

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