DA 17-70 weather sealing?

Started May 1, 2012 | Discussions thread
hikenhi Regular Member • Posts: 498
Re: Too bad 17-70 f4 is KAF3...most people think you're up a creek...

Most people are under the misconception that if your SDM fails, your up a creek when it comes to Auto focus. This is not the case, unless it's a KAF3. KAF2 SDM's are actually better than just screw drives because you have a redundant auto-focus system. What will you do if your camera's screw drive system takes a dump in the field?

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