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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 25 Nov 2011 (Friday) 16:24
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Hit and Miss on my 70-200 IS II?

 
watduzhkstand4
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Nov 25, 2011 16:24 |  #1

So I've been shooting the past few days with my new lens and see that the results are inconsistent.
The shots were composed the same way with the same settings. I don't know why it turned out so different!
This is not normal is it?


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malla1962
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Nov 25, 2011 17:02 |  #2

Looks like the second shot has missed focus all together, what was your settings, did you have IS on?


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bobbyz
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Nov 25, 2011 17:04 |  #3

both look bad to me. It should be super sharp IMHO.


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watduzhkstand4
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Nov 25, 2011 17:05 |  #4

clear picture
AV mode
ISO 200
f/2.8
1/2500
200mm

blurry picture
AV mode
ISO 200
f/2.8
1/2000
200mm

Both pictures taken with IS on in mode 1.


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watduzhkstand4
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Nov 25, 2011 17:06 |  #5

malla1962 wrote in post #13450727 (external link)
Looks like the second shot has missed focus all together, what was your settings, did you have IS on?

What about the first one? Is it still softer than it should be?

bobbyz wrote in post #13450733 (external link)
both look bad to me. It should be super sharp IMHO.

Seriously? lol


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Cesium
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Nov 25, 2011 17:10 |  #6

Both are front focused. One more than the other.




  
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malla1962
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Nov 25, 2011 17:12 |  #7

watduzhkstand4 wrote in post #13450746 (external link)
What about the first one? Is it still softer than it should be?

Seriously? lol

it is a little soft but it does look like a very large crop, sometimes the IS can give problems like this if you dont give it a second or so to settle down while composing the shot, go try some more tests with IS on and off.


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JeffreyG
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Nov 25, 2011 17:17 |  #8

I think the focus in the first shot is on the bench, perhaps 12 inches in front of the subject. She's sharp, but if the focus was on her she would be a little sharper yet.

The second is a clean miss. In my years of using Canon EOS, these misses just flat out happen from time to time. If it is frequent, then an investigation into technique and gear is warranted.


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watduzhkstand4
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Nov 25, 2011 17:34 |  #9

I received the lens on 11/15/11 from B&H. How should I go about returning it? Do they charge a restocking fee of any sort? Has anyone done an exchange or return type of deal with B&H?


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watduzhkstand4
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Nov 25, 2011 17:42 |  #10

Do you guys have sample shots to show of the original and cropped of a super sharp image? Thanks :)


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yourdoinitwrong
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Nov 25, 2011 17:46 as a reply to  @ watduzhkstand4's post |  #11

What AF Point Selection mode are you using? If the mode you are using is wide enough to cover more than just her face the camera may have decided there was more contrast somewhere along an edge on the bench and focused on that. On the second one though it looks like it focused on the grass down by the concrete pad the bench is sitting on. Little hard to be sure though when viewing the shot on here.


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Fligi7
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Nov 25, 2011 17:48 |  #12

^Exactly. I'm surprised no one has asked what AF mode and points the person is using yet. That sounds like the whole issue here to me. My guess is they're letting the camera select the AF point. If they are manually selecting the point themselves and using spot focus, then something is definitely wrong with the lens.




  
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JeffreyG
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Nov 25, 2011 17:50 |  #13

I'll give you an example, but don't jump to the conclusion the lens is defective too quick. Try some tests to see what is up with the focus first. Does this lens miss often, or just every now and then (which is normal).

This is f/2.8 (wide open)


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watduzhkstand4
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Nov 25, 2011 18:00 |  #14

yourdoinitwrong wrote in post #13450895 (external link)
What AF Point Selection mode are you using? If the mode you are using is wide enough to cover more than just her face the camera may have decided there was more contrast somewhere along an edge on the bench and focused on that. On the second one though it looks like it focused on the grass down by the concrete pad the bench is sitting on. Little hard to be sure though when viewing the shot on here.

I was manually selecting point of focus. In these two pictures, I used the top left AF point on my 60D as my selected focus point. I took the shot in one shot mode.


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yourdoinitwrong
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Nov 25, 2011 18:09 |  #15

watduzhkstand4 wrote in post #13450957 (external link)
I was manually selecting point of focus. In these two pictures, I used the top left AF point on my 60D as my selected focus point. I took the shot in one shot mode.

So you are using single point? That is the best choice (I'm not sure if the 60D has Spot focus) but keep in mind that the actual focusing area is larger than the box of the focus point itself. I also think that you need to do some more testing before deciding if the lens itself is defective. I'm not saying it's not but try a repeatable test with the camera mounted on a tripod and focused on a high contrast target. De-focus the lens before each shot and turn off the IS. Take a LOT of shots this way with various subjects to see if the focus is still consistently inconsistent.


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Hit and Miss on my 70-200 IS II?
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