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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 18 Sep 2011 (Sunday) 14:08
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10-22 Sharpness / Distortion

 
Mrslinger85
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Sep 28, 2011 19:32 |  #16

I have the same issue with mine. For me, at least, I'm wondering if the lower aperture is creating a shallow depth of field and thus making the corners off.


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Stump
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Sep 28, 2011 19:38 |  #17

Mrslinger85 wrote in post #13178865 (external link)
I have the same issue with mine. For me, at least, I'm wondering if the lower aperture is creating a shallow depth of field and thus making the corners off.

f9 @ 10mm in a landscape setting should be fine. In this shot, I don't think the dof is shallow at all. He definitely needs better test shots though.


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Snydremark
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Sep 28, 2011 19:48 |  #18

What was the point of focus in that image?


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blugup
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Sep 28, 2011 23:01 |  #19

aaxsherm wrote in post #13123271 (external link)
I do not have a recommendation for putting the full file on Flickr, I do not use it because I am not a fan. (And always surprised how often Flickr is used.) I downloaded the largest available size and made some updates in PS5. Change the distortion a little. It really did not look bad before...but not having been there when it was taken I do not have a good frame of reference.

I also tried to adjust the picture to adjust for the flatness of it. It was a cloudy day and that is always a hard variable to overcome. Some may not like that I made it darker but without doing this I find it hard to add any "pop" to it. You have to know it is a matter of preference, as long as you like the outcome that is all that matters.

If you find a place to put a better version of the file, maybe we can do more with it.

Keep playing with the 10-22, you will get the hang of it and get picture you enjoy...It just takes some time, experimentation, and work. Good luck!

i like your edits to this photo!




  
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phreeky
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Sep 28, 2011 23:26 |  #20

1/160s @ 10mm, shake wouldn't be the issue. I think the distortion at the edges is just the attributes of your lens.

I'm not familiar with the 10-22. There's a good chance that what you're getting is typical of that model, most ultra-wides are a little soft in the corners, though I'd expect better at F/9. If you search for some online reviews you'll probably find some with full size images, so compare your image to those.




  
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phreeky
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Sep 29, 2011 00:03 |  #21

I just had a look at some samples, TBH most of the 10mm F/10 (i.e. close enough) high-res samples look quite similar in the corners.




  
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reaky
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Sep 29, 2011 02:15 as a reply to  @ phreeky's post |  #22

Any chance you have some sort of filter mounted?




  
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shinksma
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Sep 29, 2011 08:34 |  #23

Looking at the fullsize original, I see the typical CA in the corners. If that were to be eliminated/reduced in PP, the overall apparent sharpness should improve to meet the OP's expectations.

But I don't have a 10-22 (yet?), so I can't say the CA/corner sharpness is similar to "my" real world shots.

shinksma


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10-22 Sharpness / Distortion
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