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Noisy 24mm STM

Started Mar 2, 2017 | Discussions thread
brightcolours Forum Pro • Posts: 15,885
The difference

Superzoom2 wrote:

tr573 wrote:

Superzoom2 wrote:

sobrien wrote:

Perfectly normal! It's a great little lens, enjoy!

Shane

Thanks for the response. I'm just surprised, considering how quiet my other STM lenses are, and the fact that all STM lenses are touted for video use due to their quiet operation.

The test pics are great so far.

The three primes (24,40,50) have a different smaller STM drive type that is not silent.

Ah, that explains it then.

The difference is that the small lenses have a geared STM implementation, and you hear those gears. The EF-M 22mm f2 also is a geared STM lens.

https://www.canon-cna.com/lenses/tech-guide/focusing/

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