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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 Dec 2013 (Thursday) 05:02
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Issues with 100-400L Series - Help?

 
TeamSpeed
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Dec 20, 2013 06:21 |  #31

The 100-400 wide open at 400mm should be close to the Sigma 50-500 at 500mm wide open. The sigma is a bit sharper at that end though. The crops posted earlier should be better than what was posted and close to these results.

EDIT: full pic added


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Scott ­ M
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Dec 20, 2013 06:39 |  #32

This was shot wide open, 400mm, at ISO 3200 and was cropped tighter in Lightroom.

IMAGE: http://smerryfield.smugmug.com/Zoos/Detroit-Zoo-June-2012/i-SQmmWKG/0/XL/451A0574-XL.jpg

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Dec 20, 2013 06:59 |  #33

Here is a partial crop with the 100-400 on a 7D. It was the sharpest one of 3 that I tested, and I should have kept it. The others were very soft as compared to this. Let us know how you fare if you try a new copy.

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commonjunks
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Dec 20, 2013 07:21 |  #34

My suggestion is, give it a run for a while. mount on tripod and put a static subject use wide open and slowly increase your fstop -> f7/8. Use cable release and see how is the result. If it is still soft send it for calibration.
I have used 600L for a year+ and hardly shoot f4 (although it was sharp at f4), most of my shoots were at f7/8 (unless very low light).


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watt100
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Dec 20, 2013 07:54 |  #35

Scott M wrote in post #16541922 (external link)
This was shot wide open, 400mm, at ISO 3200 and was cropped tighter in Lightroom.

nice red panda bear shot

here's one cropped closer with better light

60D
Canon 100-400
400mm

IMAGE: http://farm4.staticflickr.com/3793/10101133894_84d30a1411_b.jpg



  
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Scott ­ M
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Dec 20, 2013 09:44 |  #36

^^ That is a wonderful red panda shot! I wish I could get that good of a view. The ones at our zoo usually stay hidden in the trees, so it is rare I get any shot at all. The one I posted was the best opportunity I ever had (and the only time I have ever seen one on the ground), and we visit 6-7 times per year.

As the OP has seen in this thread, the 100-400L can deliver great images with proper technique and exposure, provided he does not have a poor copy of the lens.


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Dec 20, 2013 09:55 |  #37

Birdsfurandfins wrote in post #16539496 (external link)
Attached are two cropped and compressed images
Thanks again.

How about posting the original, not cropped or compressed, image. I think it is hard to get a real idea only seeing a compressed and cropped shot.


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Snydremark
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Dec 20, 2013 10:03 |  #38

Yes, it does appear that something is wrong with the way the lens is functioning, but we really need to see the un-cropped shots that the samples were taken from to make a better judgement


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
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Birdsfurandfins
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Dec 20, 2013 10:23 |  #39

itw wrote in post #16540939 (external link)
You will come back and fill us in on your findings.... yes ?

I've sent it back to mifsuds, they have said they will test it and get back to me, if I have any useful feedback I'll post it here.


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Birdsfurandfins
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Dec 20, 2013 10:30 |  #40

Snydremark wrote in post #16542275 (external link)
Yes, it does appear that something is wrong with the way the lens is functioning, but we really need to see the un-cropped shots that the samples were taken from to make a better judgement

Hi, I've put up this uncropped version so you can see the full sized image. I really think I should have got better results on this one considering I had the camera on a rock (tripod stand in).


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T2i4me
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Dec 20, 2013 11:35 |  #41

I will admit when I first got my 100-400 I was in the same boat, frustrated by the lackluster results. At first I thought I had a bad copy, however after more use and taking everyone's helpful hints my crisp shot percentage went up. The key for me, using as high of a shutter speed I can get and not being affraid to bump up the ISO. Try to not shoot wide-open if razor sharp results is a goal. Use IS all the time as for me it seems to work just fine on a tripod. Also absolutely no filter and always using center point AI Servo. This is not what I would call a good low light lens so the more light the better the results.

The shot you are using as an example with the bird on the rock would be challenging as the target is so small and with all the water contrast is hard to pick up. Try shooting some houses or non moving objects with good light and contrast for practice. If you still can't get a good shot with all the hints provided then maybe you do have a bad copy.

Watt100 convinced me this lens can produce, his stuff is stellar as you can see.

Good luck!


-- Eric --
5DC - T2i - 100-400 L IS - 70-200 F4 L - 17-40 L - EF 85 1.8 - EF-S 10-22 - EF-S 15-85 IS - EF-S 60 macro - 430EX II

  
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Snydremark
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Dec 20, 2013 11:42 |  #42

Birdsfurandfins wrote in post #16542337 (external link)
Hi, I've put up this uncropped version so you can see the full sized image. I really think I should have got better results on this one considering I had the camera on a rock (tripod stand in).

Thanks; yeah, something isn't working right there. Even that small of a subject should have given better results there. I apologize if I've missed it, but what body are you shooting with?

Hopefully, they'll come back to you with something that works; but be sure to check back in with us regardless!


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
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notastockpikr
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Dec 20, 2013 11:49 |  #43

watt100 - now that's what I'm talkin about!

This lens can produce fine shots on the right camera and in the right hands. My copy (UZ date code), is very sharp. I've read that the earlier date codes can be quite soft. As I've indicated previously, get a new one and forget about used copies.

Usually used copies of this lens are for sale for a reason and the reason is what the OP has discovered.




  
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hania
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Dec 20, 2013 14:27 |  #44

watt100 wrote in post #16541839 (external link)
yes, those pics don't look too sharp. it should be more "crisp" at all focal ranges and apertures. get if fixed, adjusted or try another copy

not a bird ....

100-400
f5.6
400mm
60D


QUOTED IMAGE

Glad I sold mine - never got anywhere near that sharpness - either at f5.6 or f8!


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Birdsfurandfins
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Jan 03, 2014 09:34 |  #45

hello all, after much discussion Mifsuds agreed to take the lens back. They tested against another 100-400 they had in stock and confirmed the other version was 'much sharper' but refused to refund the return postage on the grounds that this was variability within Canon's products and not their fault. I disagree about the second part of that statement, if you are selling a E++ lens and don't both to test it against other lenses or to see if it is sharp throughout the range then I reckon you should pay the postage. They continue to disagree. I have since purchased the 70-300L from MPB photographic.

Thanks again for your invaluable assistance.


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Issues with 100-400L Series - Help?
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