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Archive 2015 · Sigma 85mm f/1.4 AF squeak

  
 
jasonpatrick
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p.1 #1 · p.1 #1 · Sigma 85mm f/1.4 AF squeak


I recently noticed that the AF on my Sigma 85mm f/1.4 squeaks sometimes when trying to achieve MFD while being pointed down. I was doing some product photography this morning when I first noticed the anomaly - basically the lens has to be pointed down at a <45% angle, and AF near MFD. I'm guessing it needs to take a trip in for service, but I was curious if anyone else had experienced something like this.


Aug 26, 2015 at 03:33 PM
Robin Smith
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p.1 #2 · p.1 #2 · Sigma 85mm f/1.4 AF squeak


Not with mine. I wouldn't worry.


Aug 26, 2015 at 03:43 PM
drew.bowser
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p.1 #3 · p.1 #3 · Sigma 85mm f/1.4 AF squeak


Same thing on my sigma 50. It's about 3 years old. Just started though...


Aug 26, 2015 at 08:42 PM
jcolwell
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p.1 #4 · p.1 #4 · Sigma 85mm f/1.4 AF squeak


Sounds like an internal lubrication issue.


Aug 26, 2015 at 08:46 PM
jasonpatrick
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p.1 #5 · p.1 #5 · Sigma 85mm f/1.4 AF squeak


Thanks, Jim. It does it on my 1d3 as well, although not as much as on the 5D3.


Aug 27, 2015 at 01:27 PM





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