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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 Nov 2009 (Thursday) 15:14
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Finally a 24-70 sharp at both ends. I think!

 
RobertZ
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Nov 19, 2009 15:14 |  #1
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Just replaced my last one (soft at one end and always mis focused). BTW that was an Adorama refurb. Many people argue that the refurbs from Canon are better because they undergo a reeval and calibration. This one was a new copy from Adorama so yes I paid full price :cry:.

Here are some shots, all handheld and center point focus in center of battery: (looks like TinyPic downgrades the pic a bit but oh well). Kind of a stupid thread but there are so many posts about issues with the 24-70 (including my own posts) that I'd thought this would help.

full pic downsized, 24mm, ISO 400, 1/500, f2.8

IMAGE: http://i49.tinypic.com/fv8glu.jpg


100% Crop, 24mm, ISO 400, 1/500, f2.8
IMAGE: http://i48.tinypic.com/20fqjyq.jpg

full pic downsized, 70mm, ISO 200, 1/500, f2.8
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif'


100% Crop, 70mm, ISO 200, 1/500, f2.8
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'

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amfoto1
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Nov 19, 2009 15:15 |  #2

I hesitate to ask... How is it in the middle? ;)


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RobertZ
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Nov 19, 2009 15:19 |  #3
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amfoto1 wrote in post #9045504 (external link)
I hesitate to ask... How is it in the middle? ;)

:shock: I need more coffee....

Actually, I'm waiting for the "Let us know when you get the filter" post.


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wimg
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Nov 19, 2009 16:19 |  #4

RobertZ wrote in post #9045529 (external link)
:shock: I need more coffee....

Actually, I'm waiting for the "Let us know when you get the filter" post.

Lemme help you here, in that case.

Could you please remove the filter, and shoot those batteries again? We can't really judge the sharpness this way ...

:lol::lol::lol:

<GDR>

Kind regards, Wim

P.S.: looks good to me, but I am interested in the middle, too. It generally is best at around 50 mm ... :D


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tkbslc
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Nov 19, 2009 16:22 |  #5

I could nitpick the CA on the second battery shot...... ;)


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wimg
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Nov 19, 2009 16:24 |  #6

tkbslc wrote in post #9045887 (external link)
I could nitpick the CA on the second battery shot...... ;)

Hey! That is very charming CA! After all, it is the longitudinal variety :D.

At least we know this lens has some spherical aberration contributing towards great bokeh :D.

Kind regards, Wim ;)


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Jannie
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Nov 19, 2009 16:25 |  #7

Have you used the micro adjust and yes removed the filter and is it set on one shot focus without expanded center? Your photos are not downloading for me so I'm just going through my trouble shot list, and I know the angst while one is trying to be sure their lens and body are working together and sharp, also are you shooting at 100 ISO which will give the best clarity and that the histogram is enough to the right, underexposed images can look soft. And have you also shot the same shots with manual focus to check whether it's the lens or the lens/camera mounting. I once had both calibrated and it made a huge difference even to my other lenses which were not recalibrated. Now I have micro adjust and don't have to worry over that part.


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RobertZ
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Nov 19, 2009 16:41 |  #8
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I really should remove the filter, use a tripod, microadjust, etc. shouldn't I? I'm actually pretty lazy.


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RobertZ
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Nov 19, 2009 16:53 |  #9
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Jannie wrote in post #9045906 (external link)
Have you used the micro adjust and yes removed the filter and is it set on one shot focus without expanded center? Your photos are not downloading for me so I'm just going through my trouble shot list, and I know the angst while one is trying to be sure their lens and body are working together and sharp, also are you shooting at 100 ISO which will give the best clarity and that the histogram is enough to the right, underexposed images can look soft. And have you also shot the same shots with manual focus to check whether it's the lens or the lens/camera mounting. I once had both calibrated and it made a huge difference even to my other lenses which were not recalibrated. Now I have micro adjust and don't have to worry over that part.

Thanks for the tips. Will try. Its a very overcast day so I upped the ISO.


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Finally a 24-70 sharp at both ends. I think!
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