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Comparing EF-S 55-250mm STM vs EF 70-200mm f/4L pictures

Started May 25, 2017 | Discussions thread
aloli
aloli Regular Member • Posts: 276
Re: Comparing EF-S 55-250mm STM vs EF 70-200mm f/4L pictures

How do you folks find the difference in AF speed? Would the 55-250 focus faster thanks to its STM motor (despite the lack of L designation)? I have a 7D and I'm looking to get a decent telephoto for sports. I'd appreciate the wider F4 aperture at the long end but it's only a one stop advantage (and maybe I should spend more for a 3rd party f2.8).

 aloli's gear list:aloli's gear list
Canon EOS 7D Fujifilm X-T2 Fujifilm X-E3 Nikon AF Nikkor 50mm f/1.8D Fujifilm XF 18-55mm F2.8-4 R LM OIS +3 more
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