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Focus jumps on my new 35mm f1.8

Started Oct 20, 2009 | Discussions thread
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Focus jumps on my new 35mm f1.8
Oct 20, 2009

I've read about a similar phenomenon on another lens in another mount, but I can't remember if this behavior is regarded as "normal" of if it's problematic.

I got a new 35 f1.8 today. Often, it "jumps" during focusing. Can't explain it better than that. This can occur during both autofocusing and manual focusing. The effect is similar in appearance to what you see in a Tamron VC lens when the VC kicks in.

I wouldn't worry about it if I were entirely sold on the focus accuracy of my sample of this lens. Sometimes it appears to be rock solid. Other times, not so much.

Anyone have any experience with this kind of phenomenon? Any observations would be appreciated.

 Looleylaylow's gear list:Looleylaylow's gear list
Nikon D7100 Olympus E-M1 Nikon AF-S DX Nikkor 35mm f/1.8G Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Olympus M.Zuiko Digital 45mm 1:1.8 +4 more
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