Canon 10-22 test shots on 550D - advice needed please

Thanks for the reply

Yes, I tested on a tripod, but I didn't worry about levelling as I didn't think it would hinder showing up any problems.

I will take some brick wall shots, make sure they are level, and check them out. If I see anything I will contact the etailer.

tonyjr said:

1st - to test - should be on tripod , table, hood of car . Hand held can induce camera shake / OOF shots .
Next , get it level . The telephone pole is bent because the lens is not level .

Looks OK to me , but there is a small learning curve on all most every lens . If you are worried about it , call , get a RMA ship by regular mail . By the time They ship back it will probably be close to or after Xmas .
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1st - it's a hobby

XTI - gripped , Canon - efs 10-22 , efs 17-55 , efs 18-55 IS , 28-90 , 28 @ 2.8 , 50 @1.8 , 28-135 IS , 35-350L ,Quantaray lens 70-300 macro , life size converter , KSM filters for all , kenko auto tubes

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Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250

Thanks so much for your post.

Yes I am looking forward to the learning curve.

Your advice is fantastic, I am very lucky to have such a great wife - I never thought I would be able to get the lens, it is becoming an expensive hobby and there are so many other things to spend money on in my life thesedays.

I have taken some brick wall shots, I do see corner sharpness (more than I had expected to be honest, but I did expect to see it) I think the lens seems fine now actually, willl posts the shots, then get the lens put away like a good husband

Peter Rowe said:

Congratulations! At the maximum size posted your shots look great, I don’t think the left side has a problem. The 10-22mm is an awesome lens but requires special techniques to use it. Your style of photography will change to where you need more close-up elements to complement distance and lead the viewer into the image. In other words, while thinking about foreground, middle and background always be thinking of a strong foreground. Also, you will find that the corners are sometimes soft more at the wide end and open, this is because of filed curvature that you can work around and mostly eliminate the problem. It will take you some time to get used to this lens but when you do it is capably of truly amazing shots you can’t normally get with a more traditional focal length. So, put the lens away, treat your wife really nicely for getting you such a great present, and have a fun time on Christmas day!

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Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250

Thanks for your comments, very happy with my choice, just need to determine it is indeed in perfect condition.

Can't wait till after Christmas when I will be able to take it out on my first shoot! Will post my pics - when comfortable with using the lens .

Water Focus said:

Peter Rowe said:

Congratulations! At the maximum size posted your shots look great, I don’t think the left side has a problem. The 10-22mm is an awesome lens but requires special techniques to use it. Your style of photography will change to where you need more close-up elements to complement distance and lead the viewer into the image. In other words, while thinking about foreground, middle and background always be thinking of a strong foreground. Also, you will find that the corners are sometimes soft more at the wide end and open, this is because of filed curvature that you can work around and mostly eliminate the problem. It will take you some time to get used to this lens but when you do it is capably of truly amazing shots you can’t normally get with a more traditional focal length. So, put the lens away, treat your wife really nicely for getting you such a great present, and have a fun time on Christmas day!

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Yes, I agree it is a pretty good lens. For such a wide angle (16 - 35mm equivalent on a FF sensor) the lens has very little in terms of distortions, even at 10mm. You need to keep the lens on a level with the horizon to avoid distortion. Good build quality, no IS but not really needed in this range of focal lengths. Balances well on my Canon 50D and 400D with battery grip.

Regards

Andrew

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Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250

Ok, I found a brick wall - wasn't in sunlight, but all I could do before work, I had 15 minutes. Got the camera on a tripod, with a 2 second shutter so hopefully there was minimal bounce. Got the camera level, but not sure it is completely level with the horizon.

I do see some softness at 10mm in the corners (as expected) but quite a bit at f3.5, more than I had expected actually. It improves, and looks best at f11 imo at 10mm. More importantly, I don't see any differences from left side to right side in this better test shot.

At 22mm it looks pretty darn good I think.

Would like some expert's comments, but I think I am satisfied now.

As I mentioned earlier, I created this thread because I got the lens delivered from Singapore, and it is a grey import. The etailer says any faults will be replaced within the first week or 2 from receipt of delivery. After that it is down to the warranty (not Canon as the lens is grey) and I do not want to have to deal with warranty on a grey lens. The lens is also a Christmas present from my wife, so I had minimal time to check for faults, and wanted to be sure the lens is not a lemon and she can put it away for me.

Thanks for those that have helped me so far, and for any that help from here on

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Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250

kobeson said:

Thanks for those that have helped me so far, and for any that help from here on

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Cheers,
Daniel

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Looks like you're good to go Daniel. Your pics are typical for this lens. A little softness in the corners is unavoidable with such a wide angle lens. In fact, the reason I like the Canon 10-22 so much is, compared to my 17-40 on my 5DII, the 10-22 on a crop camera has much, much better corners for roughly the same FOV. Corners on the 17-40 w FF are hideous (and blasphemy of all blasphemies, the 16-35 2.8 II isn't any better). So be happy with what you're seeing on the 10-22...
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View my photo galleries here: http://imageevent.com/24peter

Just FYI, I also have the 10-22 and mine did have pronounced decentering. I can't tell you if this was always so because I didn't take brick wall test shots on day one but in the end the right side was just unsharp at wider apertures and back to Canon it went. That did the trick - they aligned it properly and it's fine now. For that reason, I would like the option to send it in when needed.

Indeed don't concern yourself that the corners are not tack sharp or a bit darker - that's all normal and understandable but the pattern of sharpness should be centered and symmetrical.

Other than that, just look forward to using and enjoying the lens and get your wife something nice for Christmas!

Good to hear Peter, thanks for the confirmation

I expected the corner softness, and I am glad to hear it isn't a sever case compared to other lenss! I am beginning to understand why the outside is soft, the Tokina lens being sharp corner to corner was appealing, but I will learn to take advantage of the tack sharp centre, and avoid busy corners anyway. Te photos I have seen taken from the 10-22 are amazing, and I simply cannot wait to begin learning how to use it correctly.

Cheers

24Peter said:

kobeson said:

Thanks for those that have helped me so far, and for any that help from here on

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Cheers,
Daniel

Click to expand...

Looks like you're good to go Daniel. Your pics are typical for this lens. A little softness in the corners is unavoidable with such a wide angle lens. In fact, the reason I like the Canon 10-22 so much is, compared to my 17-40 on my 5DII, the 10-22 on a crop camera has much, much better corners for roughly the same FOV. Corners on the 17-40 w FF are hideous (and blasphemy of all blasphemies, the 16-35 2.8 II isn't any better). So be happy with what you're seeing on the 10-22...
--
View my photo galleries here: http://imageevent.com/24peter

Click to expand...

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Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250

Hi Paul,

So I wasn't imagining things (lol) I had read of a few decentering issues on the 10-22. Was it predominantly at wider angles (10mm) that you noticed it?

I have seen plenty og examples of the Sigma 10-20 lenses showing the fault, so I knew what to look for, but it was something I wanted to confirm.

I mean, in my wall shot at 10mm f3.5, the corners and the edges on all sides aren't as sharp as the centre. Of course, I was expecting this after all the research I had done on the lens - but I wasn't sure to what degree it should be soft.

My initial shots showed more softness to the left side, but my brick wall tests showed more symetrical softness/sharpness (dead centre is sharpest). I guessed decentering means one side is softer than the other (focus isn't dead centre right?) so as long as it is symmetrical, mine is fine. That is what I surmised, but needed opinions from lens experts - something I am certainly not (only been using DSLR for 6 months now).

I will definitely enjoy using the lens, I simply can't wait! And will most definitely spoil my wife in return

Cheers!

Paul Ch. Kierkus said:

Just FYI, I also have the 10-22 and mine did have pronounced decentering. I can't tell you if this was always so because I didn't take brick wall test shots on day one but in the end the right side was just unsharp at wider apertures and back to Canon it went. That did the trick - they aligned it properly and it's fine now. For that reason, I would like the option to send it in when needed.

Indeed don't concern yourself that the corners are not tack sharp or a bit darker - that's all normal and understandable but the pattern of sharpness should be centered and symmetrical.

Other than that, just look forward to using and enjoying the lens and get your wife something nice for Christmas!

Click to expand...

--
Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250

Yes, the decentering was more pronounced at wider angles but there may be yet another reason - shots at 10mm tend to challenge depth of field more often in that there are objects much closer on one side or the other in many shots - that just makes it worse. It was however obvious that the DOF was much more limited on the right side (with my lens). If you shot your wall straight on (at 3.5) and the pattern is symmetrical you should be fine. Enjoy the lens - it can be a real eye opener.

cheers...

Ok, yeah scientifically it HAS to have focus issues wide open on one side if objects aren't symmetrical to the viewpoint I guess. I think that's what happened in my first few test shots on the first page.

I've been drooling over example shots from UWA lenses for the past few months, I cannot wait to open mine and get out there shooting! I will make sure to post some (post worthy) shots when I get used to it

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Cheers,
Daniel

Canon EOS 550D (gripped) | Canon 18-55 f3.5/5.6 | Canon 55-250 f4-5.6 | Canon 50mm f1.8 II | Raynox DCR-250