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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 04 Mar 2016 (Friday) 12:23
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Canon service says my L lens is too old to repair. Any suggestions?

 
rhs
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Post edited over 3 years ago by rhs.
     
Mar 04, 2016 12:23 |  #1

This is in reference to my EF 28-70 2.8 L lens, purchased in 2001

Over the last couple of years this lens has started to produce hazy pictures with very low contrast. After doing any and all cleaning that I could do myself I decided that the lens needed to be repaired by Canon. The quality of the pictures is too bad to continue using the lens as it is. I suspect that one of the interior elements somehow developed a hazy film on it which needs to be cleaned off.

Unfortunately the lens was returned by Canon service, untouched with an explanation that I had exceeded the service life of this model. It also cited that components are no longer available for this model lens.

I am at a loss for what to do short of opening the lens myself and trying to find the problem – which would probably end up destroying it.

Can any of you while suggest to me any solutions to this problem that you might be aware of. Maybe somebody knows of a facility that will repair Canon lenses? Maybe it is possible to repair it myself with a little bit of instruction or a YouTube video for instruction.

To replace this lens with an identical used one from a major auction website would cost me about $800. The replacement for this model is over $1500. Ouch.

Just FYI, here is a link to a full sized sample image: http://sessums.net/sam​ple/sample.JPG (external link)




  
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Qlayer2
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Mar 04, 2016 12:48 |  #2

I know midwest camera and keh offer repair services- you would have to call or email to see if they have any available parts for your lens, and estimated cost.

As far as a replacement goes, consider the Tamron 24-70 f/2.8 VC or Canon 24-70 f4 IS if you don't need f/2.8- they will run you around $700-1000 depending on used/refurbed/new.




  
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Post edited over 3 years ago by TeamSpeed.
     
Mar 04, 2016 12:50 |  #3

When you hold up the lens to a light, do you see a haze through the elements? Some of the canon lenses are pretty easy to remove the front element, as they are usually stationary, and if the haze is on the next set of lenses, you might be able to get this cleaned out yourself.

https://www.youtube.co​m/watch?v=2cwCIZFtyIo (external link)


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Mar 04, 2016 14:26 |  #4

Tamron VC 24-70 2.8 - $700

https://photography-on-the.net …/showthread.php​?t=1453593


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rhs
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Mar 07, 2016 12:40 |  #5

Thank you'll for the suggestions. I am reviewing a number of different repair shops that I was able to locate online and will select one. As it turns out my old "go to" camera store here in town closed two months ago after 40+ years in business.

TeamSpeed: I'm a DIY type of person, but that video, as interesting as it was, was just too intimidating for me to consider trying a repair myself. I did enjoy watching it however.




  
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Guto
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Mar 07, 2016 20:07 |  #6

I had the similar problem years ago.

http://photo.net …gital-camera-forum/00VZ7E (external link)


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Mar 07, 2016 20:50 |  #7

also the 24-70f2.8 L replacement should be in the same range as the tamron...is the autofocus still working on the lens? you could probably list it on ebay as needing repair due to the haze and get at least a couple hundred dollars for it...so if the repair is like $400 it may not be worth it

even if the AF doesn't work it still has value, as people buy them for parts to fix other lenses


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Post edited over 3 years ago by cjm.
     
Mar 08, 2016 22:34 |  #8

rhs wrote in post #17923362 (external link)
To replace this lens with an identical used one from a major auction website would cost me about $800. The replacement for this model is over $1500. Ouch.

I mean HUH??? That is a collectors price then.

I owned the 28-80L and the 28-70L and I can tell you even the mark 1 24-70L is a vast improvement. I bought a 24-70L last summer for $650 CAD. I am sure you can find a good more recent L lens for around the same price.

Looking at that photo. I have to wonder what camera do you use? Because this haze is so well balanced that it almost looks as if the sensor is dying on the body or something on that end as the photo its self is in focus and fairly sharp.


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rhs
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Mar 09, 2016 14:40 as a reply to  @ cjm's post |  #9

cjm, I don't think it's the camera. Pictures taken with my other two lenses on my camera are fine; however, I do not have a second Canon camera to test then lens on to confirm that I can duplicate the problem.

The cost to replace this lens with a used one via ebay is about $800. The cost of the newer, current model is about twice that. It's going to be a lot better for me to pay to have it repaired.

What I have decided to do is to send the lens to United Camera (unitedcamera.com) to have it repaired for $280. I did what research I could on the company and feel that I will get good service from them.




  
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rhs
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Mar 23, 2016 15:22 |  #10

Follow up:

United Camera returned the lens to me, just the same as Canon did, stating that it is past it's service life. (I bought the lens new in 2001.)

Right now I am not going to pay the approx. $1,800 (USD) to purchase a new replacement so I am left without a mid-range lens - which is what I use the most. I am now looking for a good quality replacement that is more affordable than a Canon L lens but that still produces excellent quality pictures....

As for the lens itself, I will list it on ebay with a clear description of what the problem is and will include sample photographs.




  
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Mar 23, 2016 15:39 as a reply to  @ rhs's post |  #11

You could just go for the first 24-70L for probably less than 1k


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Mar 23, 2016 16:12 |  #12

I recently had my EF 28-70 2.8 L lens w/out IS AF motor repaired, so maybe Midwest camera (Detroit) would look at yours.
734-285-2220.
repairs@midwestcamera.​com


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Mar 23, 2016 18:04 |  #13

Or, replace it with the Tamron 24-70 f/2.8 VC that TS mentioned earlier. That one came out of the stable strongly and is a very good lens.


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Mar 24, 2016 02:21 |  #14

rhs wrote in post #17945966 (external link)
Follow up:

United Camera returned the lens to me, just the same as Canon did, stating that it is past it's service life. (I bought the lens new in 2001.)

Right now I am not going to pay the approx. $1,800 (USD) to purchase a new replacement so I am left without a mid-range lens - which is what I use the most. I am now looking for a good quality replacement that is more affordable than a Canon L lens but that still produces excellent quality pictures....

As for the lens itself, I will list it on ebay with a clear description of what the problem is and will include sample photographs.


This is a known issue with this lens and several others of the same era. The glue used to cement two of the elements reacted to UV and yellowed over time, creating the hazy look to the images. There are several YouTube videos that address this issue. Because of the lack of parts, most repair agencies won't touch it. The home remedy is to unglue the elements, clean the elements and re-glue them. Not for the faint of heart.




  
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lvph2
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Post edited over 3 years ago by lvph2.
     
Mar 25, 2016 18:35 |  #15

I've never taken apart a lens like that. But, I do mess with watch crystals. And, I have seen different things happen depending on the glass, coatings, etc.

These are the options I would try if it were a watch crystal.

1 - clean/polish glass with something abrasive, but not enough to scratch the glass. Comet cleaner or just water and baking soda comes to mind. recoating is probably not possible I assume.

2 - Buy a damaged lens that has good glass. Remove the element you need. Done.


EDIT - After seeing the post about the glued elements, that seems pretty easy from my expertise with watches. But, my question would be, what glue do you need to use that will not compromise image quality?



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Canon service says my L lens is too old to repair. Any suggestions?
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