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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 12 Oct 2011 (Wednesday) 14:42
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Not happy with my Canon 15-85mm EF-S

 
guitarfish
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Mar 05, 2012 18:49 |  #121

I sent mine in to Canon last November, when I had about 2 weeks left of my warranty. They sent it back with a note a couple weeks later, which was a bit contradictory, but here's what they said:

"Your product has been examined and it was found that the product performed according to specifications causing the focus to operate improperly. The unit was cleaned, checked and adjusted Center, Tilt, Front/Back focus & checked to all factory specs. If same problem occur, please send us with the body. Product functions were confirmed."

With that said, I can't say I noticed a dramatic improvement after I got it back. The pictures aren't bad, but I just don't see what others describe as almost L lens quality, etc. At least now I know it's been tweaked, it's my walk around lens, I use it and I'm happy with it.




  
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cheezz
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Mar 05, 2012 19:12 |  #122

Looks good to me.


Canon 7D // EF 24-70mm f2.8L USM, EF 85mm f1.8 USM, 50mm 1.8 II Nifty Fifty, EF 28-135mm f3.5-5.6 IS USM kit lens, EF-S 55-250mm f4-5.6 IS, 430EX II
Added: EF-S 15-85mm f3.5-5.6
Added: EF 70-200mm f4L IS
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mwsilver
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Mar 06, 2012 02:16 |  #123

guitarfish wrote in post #14031035 (external link)
I sent mine in to Canon last November, when I had about 2 weeks left of my warranty. They sent it back with a note a couple weeks later, which was a bit contradictory, but here's what they said:

"Your product has been examined and it was found that the product performed according to specifications causing the focus to operate improperly. The unit was cleaned, checked and adjusted Center, Tilt, Front/Back focus & checked to all factory specs. If same problem occur, please send us with the body. Product functions were confirmed."

With that said, I can't say I noticed a dramatic improvement after I got it back. The pictures aren't bad, but I just don't see what others describe as almost L lens quality, etc. At least now I know it's been tweaked, it's my walk around lens, I use it and I'm happy with it.

A number of people seem to have QC issues with this lens. My copy, around 2 months old. is very sharp corner to corner and everything in between when both wide open and topped down. It also seems to have better contrast than any of my other lenses, although the Tamron comes close in that respect. Even when stopped down, the sharpness of my other lenses does not compare to this one. Although it has a lot less reach than my two Canon and Tamron super zooms, and my Canon 55-250, the 15-85 rarely comes off my 60D. My other lenses are at their sharpest when stopped down, but even at their best they still fall short of the 15-85.


Mark
Canon 7D2, 60D, T3i, T2i, Sigma 18-35 f/1.8, 30 f/1.4. Canon EF 70-200 L f/4 IS, EF 35 f/2 IS, EFs 10-18 STM, EFs 15-85, EFs 18-200, EF 50 f/1.8 STM, Tamron 18-270 PZD, B+W MRC CPL, Canon 320EX, Vanguard Alta Pro 254CT & SBH 250 head. RODE Stereo Videomic Pro, DXO PhotoLab Elite, ON1

  
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smmokan
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Mar 06, 2012 09:08 |  #124

mwsilver wrote in post #14033635 (external link)
A number of people seem to have QC issues with this lens.

I would disagree... I think it's more accurate to say "A few people on POTN have had QC issues with this lens, and those threads seem to pop up when I do a search." I'd say about 99% of the people who have bought this lens have been more than happy with it. Aside from the non-constant aperture, it rivals most of Canon's L zooms in every way.


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dave_bass5
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Mar 06, 2012 09:42 |  #125

Whats the difference between "a number of people" and "a few people"?

To suggest its only on POTN is silly, there are other foums (and Flickr) on the net with people reporting issues. Not in any great number but still, its not just people on here.


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stsva
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Mar 06, 2012 09:59 |  #126

armandtchou wrote in post #14029911 (external link)
Very interesting thread. I've bought a 15-85 for my 60D and I'm a bit disappointed by pictures I took this week-end. I've the feeling that my "old" 17-85 gives me better results. Like guitarfish I also have a 55-250 and when I tried to compare these two lenses in similar conditions (on a tripod, same focal length, aperture, etc.), I haven't seen big differences between images.
You can see two 100% jpg samples here (external link) or here (external link). I only shoot in RAW, manual mode, with center focus point selected.
Do you think I've a bad copy, or do I have to change my eyes instead of my lens? :)
Thank you and sorry for my english, I hope I haven't done too much mistakes. ;)

Try shooting something under controlled conditions and see how it looks. For example, set up something with lots of detail in good, even lighting.


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armandtchou
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Mar 06, 2012 13:14 |  #127

Thanks for your answers.

Looks good to me.

OK. I don't find it's bad, but I'm very surprised that both my 17-85 and 55-250 seem sharper.

Try shooting something under controlled conditions and see how it looks. For example, set up something with lots of detail in good, even lighting.

I don't have a very good lightning in my room, but I tried something with my map of China. I know conditions aren't very good and representative (1/5 :rolleyes:), even with my tripod and remote, but it's all I've now and I just wanted to compare my lenses in similar conditions :) I used Live View 10x AF.

Test 1 : (external link) 15-85, 59mm, f/5.6, 1/5
Test 2 : (external link) 55-250, 55mm, f5.6, 1/5




  
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mwsilver
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Mar 06, 2012 14:18 |  #128

smmokan wrote in post #14034757 (external link)
I would disagree... I think it's more accurate to say "A few people on POTN have had QC issues with this lens, and those threads seem to pop up when I do a search." I'd say about 99% of the people who have bought this lens have been more than happy with it. Aside from the non-constant aperture, it rivals most of Canon's L zooms in every way.

We're on the same page. I didn't mean to imply it was a large number of owners or large percentage of all owners. While I'm not in a position to say whether 99% of these lenses are problem free, it seems that more than just a few people have indicated dissatisfaction with its IQ and quality control (other than zoom creep). I've seen references to various issues on other forums as well, Of course some of those with issues may have posted their concerns on multiple sites, and with different user handles, which would make the problems seem more widespread. And of course there is always some segment of the population who may have unrealistic expectations But even a couple of reviews indicated QC problems. Cameralabs.com's version had issues with the IS which was only good for 2 stops, and had pretty extensive zoom creep for a new lens. The Photozine review indicated a QC issue with their copy.


Mark
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shack
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Mar 06, 2012 14:37 |  #129

To my eyes the 55-250 is close but not sharper. You are also hitting it's sweet spot, the short end and a stop down. I have both of these lenses, and I'm not surprised the 55-250 does well. It has a large following that really like this inexpensive lens. It is better than it logically should be. Mine has since been replaced with a 70-200 f4 IS, but I will keep it as a very capable back-up. All lens can differ somewhat but my 15-85 is very sharp, however you may have one that is slightly less so...but in viewing your images, they appear to be very nice.


60D - EF 50mm f/1.8 - EF-S 15-85mm f/3.5-5.6 IS - EF 70-200mm f/4 L IS - EF 300mm f/4 L - Tokina 10-17mm f/3.5-4.5 Fisheye - Canon Speedlite 430EX - PowerShot G12

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stsva
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Mar 06, 2012 15:04 |  #130

armandtchou wrote in post #14036281 (external link)
Thanks for your answers.

OK. I don't find it's bad, but I'm very surprised that both my 17-85 and 55-250 seem sharper.


I don't have a very good lightning in my room, but I tried something with my map of China. I know conditions aren't very good and representative (1/5 :rolleyes:), even with my tripod and remote, but it's all I've now and I just wanted to compare my lenses in similar conditions :) I used Live View 10x AF.

Test 1 : (external link) 15-85, 59mm, f/5.6, 1/5
Test 2 : (external link) 55-250, 55mm, f5.6, 1/5

You definitely got the detail part right, but the lighting doesn't look too good. I'd try again before giving up on the 15-85. These links show examples of the sharpness I've gotten with mine:
https://photography-on-the.net …?p=11372993&pos​tcount=383
https://photography-on-the.net …p?p=9331835&pos​tcount=148


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Mar 06, 2012 15:10 as a reply to  @ stsva's post |  #131

I think my 15-85 is pretty sharp.


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mwsilver
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Mar 06, 2012 15:20 |  #132

2cruise wrote in post #14037071 (external link)
I think my 15-85 is pretty sharp.


QUOTED IMAGE

Doesn't get much sharper than that. I down loaded this 400K version and viewed it at 400% on my 23" HD monitor and it was still fairly sharp at that magnification.


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armandtchou
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Mar 06, 2012 16:31 |  #133

To my eyes the 55-250 is close but not sharper. You are also hitting it's sweet spot, the short end and a stop down. I have both of these lenses, and I'm not surprised the 55-250 does well. It has a large following that really like this inexpensive lens. It is better than it logically should be. Mine has since been replaced with a 70-200 f4 IS, but I will keep it as a very capable back-up. All lens can differ somewhat but my 15-85 is very sharp, however you may have one that is slightly less so...but in viewing your images, they appear to be very nice.

Thanks for your opinion. :D I'm indeed very happy with my 55-250 too.

You definitely got the detail part right, but the lighting doesn't look too good. I'd try again before giving up on the 15-85. These links show examples of the sharpness I've gotten with mine:
https://photography-on-the.net/forum/...&post​count=383
https://photography-on-the.net/forum/...&post​count=148

Thank you for these examples! Yours seems great. I tried again my "chinese map test" with a LED spot, lightning is now a bit better. These links show my results:

Example 1 : (external link) 55-250, 55mm, f/5.6, 1/15
Example 2 : (external link) 15-85, 57mm, f/5.6, 1/15
I know I'm not in the best focal range of my 15-85 but on these two pictures it is definitively softer in the center of the frame than my 55-250. It's very clear on the pink border between China and other countries. It seems to be a bit better in corners.
I also noticed that I always had to focus twice with the 15-85 to obtain a sharp image. The first try is always blurred. :confused: It confirms an impression I had when I took train pictures you can see in one of my previous message. That has never happened with my 17-85 :cry:




  
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mwsilver
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Mar 06, 2012 17:00 |  #134

armandtchou wrote in post #14037621 (external link)
Thanks for your opinion. :D I'm indeed very happy with my 55-250 too.


Thank you for these examples! Yours seems great. I tried again my "chinese map test" with a LED spot, lightning is now a bit better. These links show my results:

Example 1 : (external link) 55-250, 55mm, f/5.6, 1/15
Example 2 : (external link) 15-85, 57mm, f/5.6, 1/15
I know I'm not in the best focal range of my 15-85 but on these two pictures it is definitively softer in the center of the frame than my 55-250. It's very clear on the pink border between China and other countries. It seems to be a bit better in corners.
I also noticed that I always had to focus twice with the 15-85 to obtain a sharp image. The first try is always blurred. :confused: It confirms an impression I had when I took train pictures you can see in one of my previous message. That has never happened with my 17-85 :cry:

I too like my 55-250. It gives generally better results in its range then either of my two super zooms, although as I've said, the contrast on my Tamron 18-270 is better. However my copy of the 15-85 is far superior to anything else I own in almost every respect. (My 50mm f1.8 is, of course, much faster). Its definitely the sharpest lens I own. Corner to corner, edge to edge, its tack sharp shooting wide open and stopped down. When stopped down it's still tack sharp over a greater DOF. The color and contrast is excellent. At 15mm the amount of CA is significantly less than my Canon 18-200 at 18mm. The same is true of the barrel distortion. While these characteristics are better on myTamron 18-270, they are still no match for the 15-85. Addtionally the IS on the 15-85 is terrific. I can usually get very acceptable results hand holding it at 1/15 second or even slower. Trying that with ANY of my other lenses is an effort in futility.


Mark
Canon 7D2, 60D, T3i, T2i, Sigma 18-35 f/1.8, 30 f/1.4. Canon EF 70-200 L f/4 IS, EF 35 f/2 IS, EFs 10-18 STM, EFs 15-85, EFs 18-200, EF 50 f/1.8 STM, Tamron 18-270 PZD, B+W MRC CPL, Canon 320EX, Vanguard Alta Pro 254CT & SBH 250 head. RODE Stereo Videomic Pro, DXO PhotoLab Elite, ON1

  
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Mar 06, 2012 17:45 |  #135

armandtchou wrote in post #14037621 (external link)
Thanks for your opinion. :D I'm indeed very happy with my 55-250 too.


Thank you for these examples! Yours seems great. I tried again my "chinese map test" with a LED spot, lightning is now a bit better. These links show my results:

Example 1 : (external link) 55-250, 55mm, f/5.6, 1/15
Example 2 : (external link) 15-85, 57mm, f/5.6, 1/15
I know I'm not in the best focal range of my 15-85 but on these two pictures it is definitively softer in the center of the frame than my 55-250. It's very clear on the pink border between China and other countries. It seems to be a bit better in corners.
I also noticed that I always had to focus twice with the 15-85 to obtain a sharp image. The first try is always blurred. :confused: It confirms an impression I had when I took train pictures you can see in one of my previous message. That has never happened with my 17-85 :cry:

I'm taking a look at them now, first the 55-250 (it definitely gets a lot sharper with good light ;)). The second thing I noticed, after downloading them and viewing in Photoshop at 100% view, is that the map in the 15-85 image is smaller than the map in the 55-250 image (I assume you shot them from different distances, since the overall image is different between the two lenses); it will be more difficult to compare if they're not exactly the same framing. That being said, they both look pretty sharp, although the 15-85 may be a little softer, which I would not expect between these two lenses. I hope it will be OK if I post a 100% side-by-side comparison from both images (although again, they're difficult to compare because the map is sized differently in the two images) - please go to your User CP and click to allow editing your images. I'm posting this since it's a technical question, and hope that will be all right with you. These crops are from the approximate center of the map, 55-250 on the left and 15-85 on the right.

It may be time for you to try some more basic tests, such as the battery shot test. Take three to five AA size batteries and line them up, then shoot them at a 45 degree angle to the line of batteries, focusing on the center battery. Make sure they're far enough apart when viewed at 45 degrees so that the focus square will only cover the center battery. Use the widest aperture your lens allows at whatever focal length you choose (e.g., f/3.5 at 15mm for the 15-85, f/5.6 at 85mm). If the center battery is sharply in focus then your lens is probably working properly. If the center battery is out-of-focus and one of the other batteries is in focus your lens is probably front- or back-focusing (if the in-focus battery is closer to the camera than the center battery it's front-focusing; if the in-focus battery is farther from the camera than the center battery it's back-focusing).


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Not happy with my Canon 15-85mm EF-S
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