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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 May 2013 (Sunday) 21:07
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Advice on a used Canon EF-S 17-85mm f4-5.6 IS USM

 
wnm0
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May 19, 2013 21:07 |  #1

Hi, I could do with some advice please on a used Canon EF-S 17-85mm f:4-5.6 IS USM lens which I purchased last week, the seller stated a little bit of dust was inside but now its here I would prefer to get it cleaned.

What would the approximate cost be to take it into an authorized UK Canon dealership, or would I be better to just remove the little inner ring and take out the 3 screws that hold the top glass in place and just blow it out and clean it with a micro fiber cloth? bearing in mind I have never done this before, I have seen a video and a piece of medical tape was used so the glass can be put back in the correct position.

Any help offered and definitely appreciated please.

Many thanks, Wayne.


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TheRisingArms
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May 19, 2013 21:12 |  #2

A little bit of dust won't do much if anything to your images. Unless it's a LOT of dust then you're better off not doing anything and leaving it as is - more dust might even get in when you open it up.


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Immaculens
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May 19, 2013 21:20 as a reply to  @ TheRisingArms's post |  #3

this article from lensrentals.com is worth a gander...

basically there are only a few circumstances in which dust will affect image quality and that is on the mount end.

http://www.lensrentals​.com …/a-few-easy-lens-dustings (external link)

that being said, dust bugs the %#@& out of me and there is a good chance I would be looking for a cleaning quote too.

and - that being said ;) - you start getting dust in there again after its cleaned...


Will immaculens.com (external link)

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J ­ R ­ Mohan
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May 19, 2013 21:30 as a reply to  @ Immaculens's post |  #4

Hi

Don't buy this lens . It is prone to malfunctions . Repairs also do not last for long.

Jai.




  
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DreDaze
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May 19, 2013 22:07 |  #5

i can't see paying to have it cleaned being worth it...either ignore it, or try and find a youtube video where someone cleans it...i know there are quite a few videos for a cable fix on there that it seems to be prone to...

also you may want to do a little comparison with your 18-55IS kit lens, to see which one performs better...


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wnm0
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May 20, 2013 06:22 as a reply to  @ DreDaze's post |  #6

Many thanks for the replies, I will do as advised and do some comparison with the kit lens and then decide what to do next.

Again many thanks, Wayne.


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Paulstw
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May 20, 2013 10:03 as a reply to  @ wnm0's post |  #7

I've actually just bought this lens too with an Err01. I know what it is and i'll be getting it fixed, however, I did ask about lens servicing and they said it would be £96 +VAT for a service.

That's basically opening it and cleaning it out.




  
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gasrocks
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May 20, 2013 14:03 |  #8

You bought a used lens and immediately were not happy with it? Why did you not return it for a full refund?


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Paulstw
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May 20, 2013 14:19 |  #9

gasrocks wrote in post #15950213 (external link)
You bought a used lens and immediately were not happy with it? Why did you not return it for a full refund?

I bought it knowing it had a fault. It was only £50. I can get it fixed for £100. I'll sell it on Ebay for £200 or what ever it goes for. It's more money towards a 17-55 2.8




  
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wnm0
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May 20, 2013 16:29 as a reply to  @ Paulstw's post |  #10

I just could not honestly rest with that much dust inside although there was nothing big it just annoyed the hell out of me also I bought it knowing it also had a very small gap difference above the focusing ring so I watched a damn good video on You Tube and set to it.

I opened it by unscrewing the 4 tiny screws and the 2 mini ones near the contact points, I followed the video and after removing the electronics board I noticed that the bracket was lifted near to a screw, this was sorted and is now perfect then I took out the glass and cleaned out the dust so I am happy and the lens is now as I want it.

Many thanks for all the advice on this topic.

Regards, Wayne.


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Advice on a used Canon EF-S 17-85mm f4-5.6 IS USM
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