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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 30 Jun 2013 (Sunday) 03:32
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soft 100-400

 
hania
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Jun 30, 2013 03:32 |  #1

This is a follow on from a thread I commented on in Lens Rumours forum re the new 100-400;

I mentioned that I was selling my existing 100-400 as very sot & was hopping the new version comes along quickly.

attached are 100% crops of the lens performance - this is AFTER a repair/calibration by a Canon authorised repairer.


http://annawarrington.​smugmug.com …0-samples/30269165_8SbLd​G (external link)


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kin2son
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Jun 30, 2013 03:49 |  #2
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1/5s @ 400mm on a crop 7D??


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troutfisher
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Jun 30, 2013 04:23 |  #3

Presumably these are all tripod mounted,mirror lock up etc and sharpened.


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kin2son
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Jun 30, 2013 04:26 |  #4
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troutfisher wrote in post #16077334 (external link)
Presumably these are all tripod mounted,mirror lock up etc and sharpened.

Probably, but why not test it outdoor or under good light to eliminate shake?

Shooting @ 640mm equiv at 1/5s is asking for trouble.


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troutfisher
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Jun 30, 2013 04:29 |  #5

kin2son wrote in post #16077338 (external link)
Probably, but why not test it outdoor or under good light to eliminate shake?

Shooting @ 640mm equiv at 1/5s is asking for trouble.

True


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hania
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Jun 30, 2013 04:52 |  #6

kin2son wrote in post #16077338 (external link)
Probably, but why not test it outdoor or under good light to eliminate shake?

Shooting @ 640mm equiv at 1/5s is asking for trouble.

raining! and it was good light (though fluorescent)


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hania
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Jun 30, 2013 05:00 as a reply to  @ hania's post |  #7

Basically this was a follow on after taking part in a bird photography workshop- the lens was totally unable to focus at 5.6 - this in good light & tripod.

I assumed it was my lack of technique, but the tutor tried and was unable to get it to focus even on stationary birds.

The lens only became usable at f8 upwards - and even then, they were rubbish compared to later shots I got with my 70-200 2.8.

I again took it back to the service centre - the shots were just a quick set to send to the tutor - we already knew it wasn't a very sharp copy- I just wanted him to see if it had been improved after a focus module (apparently) had been being replaced.

His opinion was that it was just the same - and despite using the settings shown, I do feel, that as a leading nature photographer in the UK his opinion is one that I respect.

shots on tripod, not sharpened, cable release (can't remember if mirror-lockup or not)


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watt100
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Jun 30, 2013 05:43 |  #8

hania wrote in post #16077372 (external link)
Basically this was a follow on after taking part in a bird photography workshop- the lens was totally unable to focus at 5.6 - this in good light & tripod.
I assumed it was my lack of technique, but the tutor tried and was unable to get it to focus even on stationary birds.

The lens only became usable at f8 upwards - and even then, they were rubbish compared to later shots I got with my 70-200 2.8.

I again took it back to the service centre - the shots were just a quick set to send to the tutor - we already knew it wasn't a very sharp copy- I just wanted him to see if it had been improved after a focus module (apparently) had been being replaced.

His opinion was that it was just the same - and despite using the settings shown, I do feel, that as a leading nature photographer in the UK his opinion is one that I respect.

shots on tripod, not sharpened, cable release (can't remember if mirror-lockup or not)

in the other thread you indicated it was a local camera shop that did the servicing.
Why not take it to Canon for service, that way you can shoot at f4.5 or f5.6, f6.3 etc. and say ..... sweeeet

Canon 100-400
60D

f5.6
400mm


IMAGE: http://farm6.staticflickr.com/5456/9106007529_efaa6cd286_b.jpg

Canon 100-400
60D
f5.6

400mm

IMAGE: http://farm8.staticflickr.com/7379/9095204734_0883d0ced6_b.jpg


100-400

f6.3
IMAGE: http://farm3.staticflickr.com/2812/8989771618_e90cdeb7e7_b.jpg



  
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hania
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Jun 30, 2013 06:08 |  #9

watt100 wrote in post #16077408 (external link)
in the other thread you indicated it was a local camera shop that did the servicing.
Why not take it to Canon for service, that way you can shoot at f4.5 or f5.6, f6.3 etc. and say ..... sweeeet

Canon 100-400
60D

f5.6
400mm


QUOTED IMAGE

Canon 100-400
60D
f5.6

400mm

QUOTED IMAGE


100-400

f6.3
QUOTED IMAGE

I said local canon shop-just being careless - it WAS the Local Canon authorised Centre for the Midlands area,

and I never EVER got shots anywhere near as sharp as these (brilliant shots by the way)......no matter what f-stop or shutter speed I used. Its about the only used lens I have ever bought...and there was probably a reason it was on sale.


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watt100
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Jun 30, 2013 06:37 |  #10

hania wrote in post #16077435 (external link)
I said local canon shop-just being careless - it WAS the Local Canon authorised Centre for the Midlands area,

and I never EVER got shots anywhere near as sharp as these (brilliant shots by the way)......no matter what f-stop or shutter speed I used. Its about the only used lens I have ever bought...and there was probably a reason it was on sale.

"authorised" ? In the US you almost always have to take it to Canon (actual manufacturing facility) because they don't sell parts to camera shops. I don't know about the UK but try taking it to a real Canon center for servicing.
I rarely shoot above f6.3 because in most of my shots I prefer a more blurred background to the greater DOF

And before sending it in try shooting at a higher shutter speed - more than 1/5 of a second !!!


a random 100-400 shot
Canon XSi /450D
f6.3

IMAGE: http://farm9.staticflickr.com/8088/8548655251_8eb3790ed2_b.jpg



  
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sandpiper
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Jun 30, 2013 08:25 as a reply to  @ watt100's post |  #11

Just checking, but you don't have a filter on the lens do you? I have seen many threads on here, where somebody complains they have a very soft 100-400L which cannot take sharp shots, and it turns out they had a filter on which was causing the problem. Once they took it off, things sharpened up nicely.

The 100-400L is very fussy about filters and often reacts very badly to having one fitted.




  
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hollis_f
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Jun 30, 2013 08:57 |  #12

kin2son wrote in post #16077313 (external link)
1/5s @ 400mm on a crop 7D??

hania wrote in post #16077360 (external link)
raining! and it was good light (though fluorescent)

Good fluorescent light is an oxymoron. Your shooting conditions are worthless for testing.


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shinksma
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Jun 30, 2013 09:19 |  #13

Hmm, yes, if you had a filter mounted that will negatively impact performance. Dunno why, this is the only lens that seems to be so obviously affected.

Too bad you sold the lens already and can't take more shots at much higher shutter speeds (you can use a flash if absolutely necessary, with IS off, tripod mounted, mirror lock, etc, that will optimize the shot to optical performance issues only). Easy for me to request - I'm not setting it up...

For the folks mentioning Authorized Canon Service Center vs an actual Canon Service Center (since the US is pure Canon only)...Frank, you're located in the UK. Does Canon have their own service centre(s), or do they only have authorized third-party camera shops as service centres?

shinksma


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MikeWa
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Jun 30, 2013 09:23 |  #14

If you return the lens to Canon for additional servicing ask them to adjust the elements. You might be amazed at what they can accomplish if they put in the effort.


Good questions shinksma.

Mike


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hollis_f
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Jun 30, 2013 09:47 |  #15

shinksma wrote in post #16077696 (external link)
Frank, you're located in the UK. Does Canon have their own service centre(s), or do they only have authorized third-party camera shops as service centres?

They have both. The Canon repair centre is based at Elstree. 3rd-party centres, in my limited experience, tend to vary in the extent to which they can handle the more complex problems.

I dunno if the same happens in the US, I'd guess it does, but over here it seems that Canon aren't keen on returning anything with 'Nothing wrong' on the service report. So they will put something along the lines of 'AF system recailibrated and rechecked. Adjustements carried out'. What that means is 'Nothing wrong. But we re-ran it though the calibration procedure and it was just the same as when it came in'.

This nearly always results in a satisfied customer. Of course, if the customer believes that shooting at 1/5s is a good idea when testing...!


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