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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 15 May 2018 (Tuesday) 04:28
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24-70 f/4 USM IS L mkii

 
DaveHWales
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May 15, 2018 04:28 |  #1

Hi.
I was given this lens as a Xmas gift from my partner, and am having a serious issue with it.
Every autofocussed image, at every aperture setting, shutter speed and focal length, in different lights, indoors and out, IS on or off requires sharpening in post.
I don't mean a minor touch up, I mean heavy on the sharpening tool.
Is this a known issue, or have I got a 'soft' copy?
Thanks




  
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Canon ­ Bob
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May 15, 2018 05:07 |  #2

It would appear that there is considerable variation with this lens, Dave. Mine was similarly uninspiring as far as sharpness goes (AF or manually focussed) and I eventually traded it in. Others seem to have had more success so I do suspect production QC isn't perhaps all that it should be.

Have you tried to see if you get batter results focussing with Liveview?....I couldn't.

Bob


1Dx2 (2), 5DSR, 1D4, 5D2(590nm), 5D2(720nm) EF600 EF400 EF300-II EF300 EF200 EF200-II EF180L EF135L EF100 EF85-II EF50L TS-E17/4 TS-E24L-II TS-E45 TS-E90 MP-E65 EF70-200-II EF24-70/2.8-II EF16-35/4 EF8-15/4 EF11-24/4 Zeiss 15/2.8 21/2.8 25/2 28/2 35/1.4 35/2 50/2 85/1.4 100/2 135/2 T/C's L-SC & a WIFE!

  
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DaveHWales
THREAD ­ STARTER
Hatchling
4 posts
Joined May 2018
     
May 15, 2018 06:50 as a reply to  @ Canon Bob's post |  #3

Thanks for the reply Bob.
I haven't tried LiveView, but I know that using it won't be something I look forward to. Too much like using a phone cam or a compact!
I may return the lens to Canon under warranty, see what they can come up with.




  
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James ­ P
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May 15, 2018 07:02 as a reply to  @ DaveHWales's post |  #4

I would send that lens back. I have one and mine has been tack sharp since the first day I bought it.


1Dx - 5DIII - 40D - Canon 24-70LII, 100L macro, 135L, 16-35L, 70-200 f4 and 100-400L lenses

- "Very good" is the enemy of "great." Sometimes we confuse the two.

  
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DaveHWales
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May 15, 2018 07:07 as a reply to  @ James P's post |  #5

Seems like that's my best option James.
Thanks for the input.




  
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Canon ­ Bob
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May 15, 2018 07:25 |  #6

DaveHWales wrote in post #18626013 (external link)
I haven't tried LiveView, but I know that using it won't be something I look forward to. Too much like using a phone cam or a compact!

Liveview wasn't a usage recommendation but simply to see if sharp images could be obtained by bypassing the AF system.


1Dx2 (2), 5DSR, 1D4, 5D2(590nm), 5D2(720nm) EF600 EF400 EF300-II EF300 EF200 EF200-II EF180L EF135L EF100 EF85-II EF50L TS-E17/4 TS-E24L-II TS-E45 TS-E90 MP-E65 EF70-200-II EF24-70/2.8-II EF16-35/4 EF8-15/4 EF11-24/4 Zeiss 15/2.8 21/2.8 25/2 28/2 35/1.4 35/2 50/2 85/1.4 100/2 135/2 T/C's L-SC & a WIFE!

  
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DaveHWales
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Hatchling
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May 16, 2018 03:18 |  #7

Update:
Called my local Canon partner (Canon have no stores in the UK), and will be taking the lens to them to check and recalibrate if necessary.
Fingers crossed they can fix it!




  
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24-70 f/4 USM IS L mkii
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