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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 20 Nov 2012 (Tuesday) 18:28
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Anyone need to microadjust their 70-200LIS mk2?

 
robonrome
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Nov 20, 2012 18:28 |  #1

I'd initially thought my 70-200L 2.8IS mk2 was pretty spot on, but after some tripod tests I've settled on +5 at the short end and +2 at the long (nice the 5D3 gives this option). Anyone else need to MA theirs and how much?


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Invertalon
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Nov 20, 2012 18:32 |  #2

Yes... Mine was something like +4W and +7 tele until I sent to Canon to get it calibrated to my body... Now it is 0 on both ends it appears.


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convergent
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Nov 20, 2012 18:33 |  #3

Do they charge you to do that kind of calibration, if all the stuff is still under warranty?


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5D3 gripped - 7D2 gripped - 17-40L f/4 - 18-135 f/3.5-5.6 IS STM - 24-70L f/2.8 II - 70-200L f/2.8 IS II - 100-400 L f/4.6-5.6 IS II
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Invertalon
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Nov 20, 2012 18:36 |  #4

Both body and lens need to be under warranty for them to do it usually... I sent both under warranty and told them I was having front focus issues and please to calibrate both ends to body. They found some adjustment was needed with the body causing AF inconsistencies and then calibrated the lens to it. Performs better than ever since I got it back.

I also sent my TC with it and included one of my check/clean certificates with it since it is out of warranty... They sent back my certificate and did it for free. My TC+70-200 also requires 0 on both ends as well now, where before it was front focusing on both ends as well.


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robonrome
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Nov 20, 2012 18:43 |  #5

BTW - is there a particular distance you use to MA both ends?


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mannetti21
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Nov 20, 2012 18:45 |  #6

Mine is currently at Canon for this very reason. I was +1-2 on the wide end and +7-8 on the tele end. However, I was finding the tele end to be hit or miss so decided to send it before warranty was expired. It's been there for about a week while my 50 f/1.4 was sent back within 3 days. I'm going to be patient and hope they get things corrected because testing MA at 200mm was a real PITA.



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mannetti21
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Nov 20, 2012 18:46 |  #7

robonrome wrote in post #15269850 (external link)
BTW - is there a particular distance you use to MA both ends?

Canon recommends 50x the focal length. Ie. 200mm x 50 = 10,000mm = 33ft



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robonrome
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Nov 20, 2012 18:47 |  #8

mannetti21 wrote in post #15269858 (external link)
Mine is currently at Canon for this very reason. I was +1-2 on the wide end and +7-8 on the tele end. However, I was finding the tele end to be hit or miss so decided to send it before warranty was expired. It's been there for about a week while my 50 f/1.4 was sent back within 3 days. I'm going to be patient and hope they get things corrected because testing MA at 200mm was a real PITA.

i actually found testing the wide end harder as the gradation in focus is less marked?


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robonrome
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Nov 20, 2012 18:48 |  #9

mannetti21 wrote in post #15269861 (external link)
Canon recommends 50x the focal length. Ie. 200mm x 50 = 10,000mm = 33ft

hmmm, I'm way under doing the distance then... then again that sort of distance probably goes beyond my normal working distance


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GuitarDTO
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Nov 20, 2012 19:15 |  #10

I'm almost afraid to test mine. It takes beautiful, sharp pictures and I've never noticed anything out of focus that I wanted in focus so I don't think I want to drive myself crazy by checking it! Is that...crazy?


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robonrome
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Nov 20, 2012 19:23 |  #11

GuitarDTO wrote in post #15269991 (external link)
I'm almost afraid to test mine. It takes beautiful, sharp pictures and I've never noticed anything out of focus that I wanted in focus so I don't think I want to drive myself crazy by checking it! Is that...crazy?

no I kinda wish I hadn't either....


rob - check my galleries at http://hardlightimages​.zenfolio.com/ (external link)
Zenfolio coupon discount when signing up - 93R-NCK-DUT
_______________
Canon 5D Mkiii; Sony RX100; Lumix G5; 17-40L; 24L TS-E F3.5 Mk2; 24-105L IS; 40 F2.8; 135L; 70-200L F2.8 IS MkII; Ext II 1.4x; 580 exII; 270 ex... other filtery stuff:)

  
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samsen
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Nov 20, 2012 19:27 |  #12

Hummm.
If this is fault a of manufacturer from day one, yet fault of user not to realize its presence and 3 year warranty is over, now it is buyers problem to pay!


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mannetti21
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Nov 20, 2012 19:49 |  #13

samsen wrote in post #15270051 (external link)
Hummm.
If this is fault a of manufacturer from day one, yet fault of user not to realize its presence and 3 year warranty is over, now it is buyers problem to pay!

3yr warranty??



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samsen
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Nov 20, 2012 21:21 |  #14

What is the warranty on lens? I thought Canon is 3, Sigma 5 yrs.


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samsen
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Nov 20, 2012 21:35 |  #15

I guess I haven't had any problem with my lens... Crossing the fingers.
OK EF lenses are One Yr.
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I am pretty sure to see sigma runs longer than Canon but can't see it now.

BTW saw this note on Sigma's site that was interesting and not off topic to the thread:
"AF Data AdjustmentDue to extreme sensitivity of the digital camera mirror box, more than 5 times as sensitive as that of a film camera, it may be necessary to adjust the AF data in your Sigma lens. At Sigma, we adjust all of our lenses to a neutral focus point during manufacturing. It may be necessary to have your Sigma lens adjusted to your own personal camera. This is a known problem with digital cameras and many companies have included Micro Focus Adjustment capabilities on their high end cameras to address this problem with their lenses. If you are able to do this with your camera and lens combination, there’s no need to send your equipment in for adjustment." (external link)


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Anyone need to microadjust their 70-200LIS mk2?
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