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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 24 Jul 2012 (Tuesday) 12:53
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100L 2.8 Inner Lens Movement

 
Gometang
Senior Member
266 posts
Joined Jan 2010
Location: SoCal
     
Jul 24, 2012 12:53 |  #1

Hi guys,

I borrowed a 100L 2.8 Macro from a friend recently and thought it was a little weird that the inner lens inside the mounting portion of the lens would jiggle or move laterally side-to-side if I softly shaked the lens.

The lens seems to work correctly on a camera.

Can anyone tell me if this is normal or not?

Thanks!




  
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amirshakoor
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Location: Virginia, US
     
Jul 24, 2012 12:58 |  #2

this the 100l macro? if you pull the lens off of the camera before the IS has powered down you will hear it rattle. Safest way to remove the lens is to turn off the camera then remove the lens.


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Sir_Loin
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Jul 24, 2012 13:14 |  #3

Yep, perfectly normal. I bought mine not long after it came out and noticed the rattle so I investigated and handled 3 other 100L's and they all did the same. It's due to the hybrid IS and how the IS elements are on ceramic balls. When there's no power to the lens, the IS elements move freely on the ceramic balls. When it's powered up the rattle stops. Don't worry about and have fun using your friends lens!


EOS 1D4, 5D3, EF 24-70mm f/2.8L II, EF 70-200mm f/2.8L IS II, EF 14mm f/2.8L II, EF 24mm f/1.4L II, EF 50mm f/1.8 STM, EF 85mm f/1.2L II, EF 100mm Macro f/2.8L IS, EF 300mm f/4.0L IS * FL-F 300mm f/5.6 FLUORITE, FD 55mm f/1.2 ASPHERICAL, FD 50mm f/1.2L, FD 300mm f/2.8L, FD 50-300mm f/4.5L, EOS M5, M3, EF-M 11-22mm f/4.0-5.6 IS, EF-M 18-55mm f/3.5-5.6 IS, EF-M 55-200mm f/4.5-6.3 IS, EF-M 22mm f/2.0, EF-M 28mm f/3.5 Macro IS

  
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Gometang
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266 posts
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Location: SoCal
     
Jul 24, 2012 13:16 |  #4

Thanks guys, i'll double-check tonight if I see the same behavior.

Also, in terms of AF, I had issues with focusing at macro length (within a few inches) then AFing to infinity or close to infinity. Should the lens be able to auto-focus easily between super-short distances to long distances by itself? I had to move the manual focus a little so the camera had an easier time determining focus.




  
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100L 2.8 Inner Lens Movement
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
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