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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 25 Dec 2012 (Tuesday) 02:05
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70-200/IS-II : Out of focus images

 
rakesh
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Dec 25, 2012 02:05 |  #1

I recently acquired this lens and used it last week but unfortunately with the combination of 7D, it is not producing image quality for what it is known.

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In seeing the images on LCD of Camera, pictures look OK but after transferring to Computer, all images are looking out of focus.

Do I need to do any Lens adjustments in order to get best quality ?

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kin2son
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Dec 25, 2012 02:10 |  #2
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They are not oof, it's called motion blur.

292mm and 1/40s in 1st pic?

2nd pic - 140mm @ 1/20s? And why using the 2x TC?

You do know that @ f5.6 (that is, the min aperture with a 2x TC attached), the result will be a little bit soft right?

Combined with ridiculously slow shutter speed, of course it's not sharp....

110% user error.


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Seapup
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Dec 25, 2012 02:11 |  #3

Do you have any samples without the 2x extender?


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Brendo666
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Dec 25, 2012 02:20 |  #4

I tested this lens at the store with my 1D and it has me convinced to sell my non IS and 300L. I think you need to check it out without the TC


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shiftonephoto
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Dec 25, 2012 02:43 |  #5

This lens is insanely sharp, you are definitely shooting way to low of a shutter speed. Its a heavy lens and you need to get used to it. This is a shot with that lens and a 7d, so sharp you can shave with it.

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DreDaze
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Dec 25, 2012 11:46 |  #6

your shutter speeds are too slow


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Snydremark
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Dec 25, 2012 11:52 |  #7

The others are right about shutter speeds, but you may *also* benefit from micro-adjusting it on your 7D, as well.


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londonbairn
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Dec 25, 2012 12:02 |  #8

7d is definately sharp with the lens but its even better on a FF :)




  
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shiftonephoto
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Dec 25, 2012 13:55 |  #9

rafster wrote in post #15405943 (external link)
7d is definately sharp with the lens but its even better on a FF :)

Honestly, I cant tell any difference of it being sharper on FF at all.


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shiftonephoto
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Dec 25, 2012 13:57 |  #10

Snydremark wrote in post #15405915 (external link)
The others are right about shutter speeds, but you may *also* benefit from micro-adjusting it on your 7D, as well.

That micro adjustment stuff sucks, I wouldnt recommend poking around in there if you dont know what your doing, and in this case its cleary a motion blur issue, even with the IS on 1/20 with that lens handheld takes some sniper steadiness to pull off.


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icopus
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Dec 25, 2012 14:31 as a reply to  @ shiftonephoto's post |  #11

For some time, I had also feared I had soft focus issues... until I put it on a tripod. I now wonder if I'm getting Parkinson's.  ??? My dad had it.


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amfoto1
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Dec 25, 2012 15:01 |  #12

shiftonephoto wrote in post #15406215 (external link)
That micro adjustment stuff sucks...

Why does it suck to have the capability to fine-tune your gear to work together for it's very best potential? Or not... if you already are happy with the results you're getting already?

Micro Adjustment is a whole lot better than having to send gear in for calibration on a regular basis, the way we had to do before camera's offered an MA feature.

Using it or not is entirely optional... I agree, though, that it's probably a good idea to read up on MA before trying it... But the worst that can happen is you end up zeroing back out any adjustments you made, if they don't make for an improvement.


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shiftonephoto
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Dec 25, 2012 15:09 |  #13

amfoto1 wrote in post #15406377 (external link)
Why does it suck to have the capability to fine-tune your gear to work together for it's very best potential? Or not... if you already are happy with the results you're getting already?

Micro Adjustment is a whole lot better than having to send gear in for calibration on a regular basis, the way we had to do before camera's offered an MA feature.

Using it or not is entirely optional... I agree, though, that it's probably a good idea to read up on MA before trying it... But the worst that can happen is you end up zeroing back out any adjustments you made, if they don't make for an improvement.

I say it sucks because of that reason. I thought I had a back focusing lens that worked fine on my other camera. so I setup up the tripod did all the different test with lines of batterys, ect ect.. played around with it and It never fixed anything so in my experience it was a ton of time to get no results.

At the end of the day this particular thread the OP is trying to shoot a heavy ass 70-200 at 1/20 handheld. That is clearly the problem, MA is not the issue at all.


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londonbairn
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Dec 25, 2012 15:14 |  #14

shiftonephoto wrote in post #15406210 (external link)
Honestly, I cant tell any difference of it being sharper on FF at all.

OOF areas look nicer and AF locking faster




  
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shiftonephoto
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Dec 25, 2012 15:21 |  #15

rafster wrote in post #15406419 (external link)
OOF areas look nicer and AF locking faster

that has nothing to do with it being sharper though. I agree with you, I use it on my FF more often depending on the situation, but I cant tell the different in IQ at all. Its an amazing lens.


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70-200/IS-II : Out of focus images
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