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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 31 Oct 2017 (Tuesday) 15:17
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New Canon 55-250 chipped element inside?

 
Arpad
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Post edited 8 months ago by Arpad.
     
Oct 31, 2017 15:17 |  #1

Hi Guys,

I have bought 3 lenses recently (Yongnuo 50; Sigma 17-50; Canon 55-250), and all of them have a slight mark/chip on the ?second? glass from the rear.. I would be okay with this on the Yongnuo as it was cheap (and already left feedback so too late..) , but I would expect proper QC from Canon and Sigma. Is this just me over worrying or should I send them back?

I made some search here and there but could not find anything similar.. :( The closest I got are bubbles in some of the older glass but this looks more like proper chipping. Any help, advice? Has anybody seen this before?

Thanks.


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saea501
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Oct 31, 2017 15:56 |  #2

If this is a new lens then I guess I don't understand why there is even a discussion.....return it and get a perfect one. That is what you paid for.

If it's used, then that would be between you and the seller. It should certainly have been disclosed regardless of it's size.


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Oct 31, 2017 17:02 |  #3

Are you sure that you are not seeing light reflecting in the lens? I remember years ago buying a 100mm macro and thinking that I had somehow scratched the lens but upon further inspection I was just seeing a reflection and the glass was fine.


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Arpad
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Nov 01, 2017 05:04 |  #4

Thanks for the replies, unfortunately they are new ones, and have looked at them at different locations and in different light conditions so they are definitely chipped or something is there. Although IQ is not really affected so I am afraid they might refuse an exchange.. But sure will try returning them.




  
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John ­ from ­ PA
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Nov 01, 2017 08:22 |  #5

sandwedge wrote in post #18485718 (external link)
Are you sure that you are not seeing light reflecting in the lens? I remember years ago buying a 100mm macro and thinking that I had somehow scratched the lens but upon further inspection I was just seeing a reflection and the glass was fine.

^^^^^^^^^This.

Too much of a coincidence to believe that three new lenses from three different manufacturers have a chip. Keep in mind that these lens manufacturers reverse engineer and some of the detail in mounting the individual elements are very similar.

How are the actual images? Take some test shots, preferably adjusting exposure so you are shooting wide open and examine them closely.




  
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ed ­ rader
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Nov 01, 2017 10:26 |  #6

if you're looking that close and finding chips on more than one lens there's a good chance you are hallucinating. I've never checked a lens for dust or chips that aren't there.


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Nov 01, 2017 21:27 |  #7

nothing good comes from staring into a lens...honestly if they all have some sort of chip, i agree with the others, that you are probably seeing things...either way, you won't be seeing any affects on the images


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Nov 01, 2017 22:12 |  #8

DreDaze wrote in post #18486602 (external link)
nothing good comes from staring into a lens...

Unless, perhaps you are on mushrooms.....:-)


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Nov 01, 2017 23:55 |  #9

Agree with comments already made:
1)Too much of a coincidence to buy 3 new lenses and all have chips.
2)No good ever came from staring into a lens.

If you insist on staring into a lens, use a flash light :twisted:


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Arpad
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Nov 06, 2017 07:01 |  #10

Wow, okay.. Uhm thanks guys. It is a bit annoying that I don't get notifications on new posts.. Anyway, yeah probably there is some truth in the fact that I am a bit fussy since these are my first new lenses that I have paid for... So I expect quality, well not from Yongnuo (which is the sharpest actually)
The only thing is when my GF says to me: what the heck is that white point in there? It means we are on the same mushroom :)
And she doesn't care about lenses... IQ is fine in my opinion, but the fact that something is there pisses me off..
But thanks for all the replies, the lens were returned for inspection and replacement if necessary.
Will update on the process.




  
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John ­ from ­ PA
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Post edited 8 months ago by John from PA. (5 edits in all)
     
Nov 06, 2017 07:08 |  #11

Arpad wrote in post #18489767 (external link)
Wow, okay.. Uhm thanks guys. It is a bit annoying that I don't get notifications on new posts.. Anyway, yeah probably there is some truth in the fact that I am a bit fussy since these are my first new lenses that I have paid for... So I expect quality, well not from Yongnuo (which is the sharpest actually)
The only thing is when my GF says to me: what the heck is that white point in there? It means we are on the same mushroom :)
And she doesn't care about lenses... IQ is fine in my opinion, but the fact that something is there pisses me off..
But thanks for all the replies, the lens were returned for inspection and replacement if necessary.
Will update on the process.

If you read what many of us have stated you are highly likely to have received the quality you anticipated. As I said earlier, it is "too much of a coincidence to believe that three new lenses from three different manufacturers have a chip." It is more than likely the lighting and the reflection within the lens from the various glass elements. By the way, are you aware that a lens may have a significant number of glass elements. That Sigma 17-50mm, if it is the f2.8, has 17 individual pieces of glass in its construction!

If you want notifications, then after you post, when you see the image below, click "Yes". You can also change the status of these notifications by clicking on "Followed + Own" near the top left corner, and then toggle the settings under "Notify" (far right).


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Nov 06, 2017 09:24 |  #12

Dont bother looking into the new lenses, unless you want to deal with it again


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Post edited 8 months ago by TeamSpeed. (2 edits in all)
     
Nov 06, 2017 09:54 |  #13

Anything on the edge of your lens never makes it to your image anyways, something else to consider.

Here is another idea, don' t look into your lenses, you don't make images that way. Go shoot stuff, and look at your pics. If you see a problem there, then start looking for potential issues with your glass or body. Also to give you something different to worry about, go shoot a white wall or solid blue sky at f22. That should divert your OCD a bit! :D


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Arpad
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Nov 06, 2017 14:21 as a reply to  @ John from PA's post |  #14

Seems like on "own threads" should send the notifications automatically. Well it doesn't for me :-P I try to un-follow and follow again maybe that will help :-)




  
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Nov 06, 2017 14:37 |  #15

I have cleaned a good few (20 something) lenses and destroyed 2 in a year. So I think I have seen some to compare, but sure not these specific ones. The truth is that I bought them from eglobal for good price so maybe I was suspicious in the first place... And got what I was expecting. I mean if you look in to my first picture you can clearly see the dot in the middle so even if you just quickly mount it still goes " yuhuuu I am here!!" That's the Canon. The sigma could be just some dust or small piece of plastic from somewhere it is tiny and not obvious. The youngnuo seems to be just a small pinhead shaped absence of coating so I can live with that. We have bought a few lenses and flashes even a 5D mkIII from eglobal and never had any issues.. Or maybe I just didn't care since it was for the company.. :rolleyes: :-P
My biggest reason was that if I will end up selling them in a few years no one would buy them. And they are somewhat expensive to just go "ehh okay, fine who cares" . thank guys for the support and advice. Have a nice evening :-)




  
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New Canon 55-250 chipped element inside?
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