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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?

 
notastockpikr
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Dec 19, 2013 11:29 |  #16

Birdsfurandfins wrote in post #16539778 (external link)
It is not really about criticising the lens, I think it is a great lens, the question is, is it working right?

You didn't confirm whether you were using a filter? If you are, then take the filter OFF.

From the the images you posted, the lens might need some callibration.

One other point, 1/320 is not nearly fast enough shutter speed for birding. The minimum is 1/500 and the f-stop should be at least f/5.6.

How old is the lens? If this was my lens, I would return it and get another 100-400L. The 100-400L is one of the Canon lenses I would not buy used along with the 50L.




  
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Scott ­ M
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Dec 19, 2013 12:01 |  #17

Looking at those two example shots, I would not be satisfied either. You should be able to get much crisper images than that. The shutter speed of the 2nd example is 1/1600, which should also be fine -- even handheld -- as long as you are holding the camera + lens properly. As someone else mentioned, you still have not answered whether you have a filter on the lens. If you do, take it off and try again. If there is no filter, I would either send the lens back for a replacement, or send it in to Canon for calibration if a return is not possible.


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S.Horton
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Dec 19, 2013 12:10 |  #18

Lowner wrote in post #16539510 (external link)
Don't expect super crisp wide open aperture images, that's not the 100-400's strength. Its an excellent motorsports lens at sensible f/numbers and with a monopod. Birding is not my thing so I have never tried it on that subject.

My friend and I both have this lens. We have shot them side-by-side for Lacrosse, same day, same angles. We swapped the lenses many times.

His copy wide-open at 400 is a touch soft. Mine is sharp as a tack.

They do vary.

His felt just a bit loose when mounted on the camera body. Just a little bit more play.


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hania
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Dec 19, 2013 14:40 as a reply to  @ S.Horton's post |  #19

I had a used one and always assumed it was my fault - I only got reasonable (but not good) images a 7.1 upwards, useless at f5.6.

Took it to workshop photographing birds in flight, tutor had a go - and was unable to get a sharp image (no filter, 7d body) on a tripod of a sitting bird at 5.6.

lens has since gone - probably why it was for sale in the first place.


my 28-300 has taken its place (and I am also looking at a 400 f5.6 for the long end)


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Jim_T
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Dec 19, 2013 17:29 |  #20

My 100-400 'keeper' rate definitely isn't at 100% But the keepers are great.

FWIW, I try to keep my aperture at f/9. That seems to be the sweet spot for my copy. The lens hood helps as well. If the sun isn't directly behind you, some of the lack of pop could be from flare caused by the sun shining on the front element.




  
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Birdsfurandfins
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Dec 19, 2013 17:36 |  #21

Thanks so much to everyone who has helped on this forum, just great to have so much experience to turn to. No, I don't have any filters on these images and all the other shots I have taken have had this same soft finish, tis back to the shop tomorrow morning i my conclusion! So much positive feedback about the lens in general means I will try again with a different version perhaps, or may even save a few more pennies and try for a new, not second hand one. Thanks again.


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illusionest
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Dec 19, 2013 17:39 |  #22

I think i agree with most people here, I've been using mine for years and a lot of it comes down to technique. Some tips:

- I try to shoot F/8 whenever possible. It seems to produce results when not fully-open. This is common for most zoom lenses.
- I try to shoot as fast as i can for shutter speed, I actually stopped using my 40D and swapped over to a 70D yesterday because the 40D ISO was a bit of a bottleneck. But anyways, that's a different story. Fast as possible, i think a poster mentioned 1/1000 on the first page. That's ideal.
- and this may sound silly but this may happen too, but make sure the zoom ring is tightened so there's no zooming movement when you're taking photos, because - of course, that also affects the focusing. it is a push/pull lense so it might droop forward / backwards a bit. You'll eventually get used to tightening the ring with one hand :)

Enjoy


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Dec 19, 2013 17:55 |  #23

S.Horton wrote in post #16540001 (external link)
My friend and I both have this lens. We have shot them side-by-side for Lacrosse, same day, same angles. We swapped the lenses many times.

His copy wide-open at 400 is a touch soft. Mine is sharp as a tack.

They do vary.

His felt just a bit loose when mounted on the camera body. Just a little bit more play.

I too have this issue, whether it's mounted on my 40D or 7D.


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itw
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Dec 19, 2013 18:19 |  #24

Birdsfurandfins wrote in post #16540844 (external link)
Thanks so much to everyone who has helped on this forum, just great to have so much experience to turn to. No, I don't have any filters on these images and all the other shots I have taken have had this same soft finish, tis back to the shop tomorrow morning i my conclusion! So much positive feedback about the lens in general means I will try again with a different version perhaps, or may even save a few more pennies and try for a new, not second hand one. Thanks again.

You will come back and fill us in on your findings.... yes ?


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cerett
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Dec 19, 2013 18:27 as a reply to  @ Canajun's post |  #25

I sold mine sometime back because of mixed results. I have since heard some positive reviews. However, this lens has been around for a while and really needs a "Mark II" version. It does not do well when compared with the new Nikon 80-400.


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RunAmok
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Dec 19, 2013 18:37 |  #26

I didn't see it mentioned, but did you try setting MFA?


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hollis_f
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Dec 20, 2013 04:23 |  #27

Birdsfurandfins wrote in post #16539496 (external link)
Attached are two cropped

How much cropping?

If you're zooming in and cropping a small part of the image then no lens will give a satisfactory image of far-off bird.


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Dec 20, 2013 05:14 |  #28

There are copy variations. I saw that across a few different copies myself. I would try another copy if possible.


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watt100
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Dec 20, 2013 05:28 |  #29

Birdsfurandfins wrote in post #16540844 (external link)
Thanks so much to everyone who has helped on this forum, just great to have so much experience to turn to. No, I don't have any filters on these images and all the other shots I have taken have had this same soft finish, tis back to the shop tomorrow morning i my conclusion! So much positive feedback about the lens in general means I will try again with a different version perhaps, or may even save a few more pennies and try for a new, not second hand one. Thanks again.

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


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Dec 20, 2013 06:09 |  #30

Great 100% crop! or is it since that is what we are talking about?


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Issues with 100-400L Series - Help?
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