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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 12 Mar 2016 (Saturday) 06:02
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Sigma 150-600 Sports/Contemporary Firmware Update for Faster AF

 
ebiggs
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Mar 27, 2016 11:56 |  #16

TeamSpeed wrote in post #17946049 (external link)
You have never heard of the term jitter? It is a very common technical term in electronics.

Did I say "term" or did I say "phrase"? A very common term in the dictionary you may want to look it up.
And, no, my Sigam S does not jitter. Sigma jitter or otherwise. Neither do any of my Canon ef lenses.


G1x, EOS 1Dx, EOS 1D Mk IV, ef 8-15mm f4L,
ef 16-35mm f2.8L II, ef 24-70mm f2.8L II, ef 70-200mm f/2.8L IS II,
Sigma 150-600mm f5-6.3 DG OS HSM Sport
*** PS 6, ACR 9.3, Lightroom 6.5 ***

  
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TeamSpeed
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Post edited over 3 years ago by TeamSpeed. (2 edits in all)
     
Mar 28, 2016 05:27 as a reply to  @ ebiggs's post |  #17

You said phrase, however you put jitter in quotes and then refered directly to that as phrase versus the earlier quote, so it wasn't clear to me. I apologize.

ebiggs wrote in post #17945772 (external link)
My S doesn't "jitter" and I have never even heard of that phrase.


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ebiggs
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Mar 28, 2016 10:24 as a reply to  @ TeamSpeed's post |  #18

Perhaps there is also "Canon jitter". It is just I have not seen that in any of my IS lenses. EF or Sigma or Tamron. The fact I am ignorant of the phrase or term does not mean it does not exist. I did not mean to imply that.

I did have an older Sigma lens that would "jump" a hummingbird clear out of the frame when the IS was energized. It was faulty and Sigma repaired it, however.


G1x, EOS 1Dx, EOS 1D Mk IV, ef 8-15mm f4L,
ef 16-35mm f2.8L II, ef 24-70mm f2.8L II, ef 70-200mm f/2.8L IS II,
Sigma 150-600mm f5-6.3 DG OS HSM Sport
*** PS 6, ACR 9.3, Lightroom 6.5 ***

  
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wizzells
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Mar 28, 2016 20:04 |  #19

ebiggs wrote in post #17951803 (external link)
Perhaps there is also "Canon jitter". It is just I have not seen that in any of my IS lenses. EF or Sigma or Tamron. The fact I am ignorant of the phrase or term does not mean it does not exist. I did not mean to imply that.

I did have an older Sigma lens that would "jump" a hummingbird clear out of the frame when the IS was energized. It was faulty and Sigma repaired it, however.

I have experienced the "jump" (not a jitter) when the IS engages on some cheaper, older Canon EF-S lenses. Most recently was on a 55-250 - the early version, not the newer STM (which does not do it).


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Sigma 150-600 Sports/Contemporary Firmware Update for Faster AF
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