15-85 vs 18-135 STM for 60D all-purpose

Started Sep 1, 2012 | Discussions thread
asad137
Contributing MemberPosts: 686
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Re: 15-85 vs 18-135 STM for 60D all-purpose
In reply to Jon_T, Jul 3, 2013

Jon_T wrote:

Blackburn11 wrote:

I am wondering how much better the STM really is for video and continuous AF during videos.

For the 60D, which is the topic of this thread, its a non-issue since the 60D does not support continuous AF with video.

I know I'm replying to an old post, but this actually isn't strictly true.

You can use the AF-On button on a 60D to continuously focus while in video mode, and you can do it with any lens, not just an STM lens (I've done it with my USM lenses). It isn't very smooth, it hunts a lot, and with a USM lens it's quite noisy, but it does sort of work (it will eventually find the right focus).

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