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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses
Thread started 25 Jan 2017 (Wednesday) 18:37
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what to expect from coating loss on lens

 
Left ­ Handed ­ Brisket
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Joined Jun 2011
The Uwharrie Mts, NC
Jan 31, 2017 19:54 |  #16

Anyone ever rub nose grease on a CD? I'd try that before pledge.


PSA: The above post may contain sarcasm, reply at your own risk | Formerly he's gone before apostrophe-gate | Not in gear database: Canon 70-210 3.5-4.5, Auto Sears 50mm 2.0 / 2x CL-360, Nikon SB-28, SunPak auto 322 D, Minolta 20

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ZoneV
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Joined Dec 2010
Germany
Feb 01, 2017 01:58 |  #17

I would polish the lens.
I have done this with some lenses, to test it as scratch repair mehtod, and to get more flare:
Photo lens polishing (external link)
I think this could give better results than now. But there is a high risk, and it will be not as good as a new lens.


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Bassat
"I am still in my underwear."
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Joined Oct 2015
Bourbon, Indiana - USA
Feb 01, 2017 06:47 |  #18

That looks more like something is ON the coating, not that coating is missing.


Tom

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scobols
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Joined Dec 2006
Waconia, MN
Feb 01, 2017 07:18 |  #19

Have you considered trying to completely remove the remaining lens coating? Although it's not ideal and there may be other consequences, it may be better than it is now.

Scott


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CheshireCat
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Sunny California
Feb 01, 2017 07:37 |  #20
banned

Have you considered removing the first lens element ?  :p


1Dx, 5D2 and some lenses

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Bassat
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Feb 01, 2017 07:39 |  #21

CheshireCat wrote in post #18261376 (external link)
Have you considered removing the first lens element ?  :p

Or smashing it with a hammer and posting photos shot with it like that? :)


Tom

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Charlie
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Feb 01, 2017 07:44 |  #22

for a lens like this, I would have gave 20-50 for the item, 100 is steep. Coating loss is an understatement..... This thing looks like it was sandblasted. I'de send a photo of the front to various repair shops to see how much the damage would be.


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DreDaze
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Feb 01, 2017 09:29 |  #23

I've looked at sending it to sigma...the whole auction was really an unknown, so i figured what the hell...the flare right now is terrible, so i'm not sure if it's worth polishing it more... i'm hoping sigma gets back to me with some idea that they will at least offer a replacement front element as an option...otherwise it'll go back on ebay


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CheshireCat
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Feb 01, 2017 10:51 |  #24
banned

DreDaze wrote in post #18261448 (external link)
back on ebay

... slightly loss of coating, almost mint conditions :lol:


1Dx, 5D2 and some lenses

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MikeWa
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Joined Apr 2012
Seattle Washington
Feb 01, 2017 12:38 |  #25

Left Handed Brisket wrote in post #18261007 (external link)
Anyone ever rub nose grease on a CD? I'd try that before pledge.

Speak before you try.

Mike


Mike...G9; 7D; 7D Mark II; EF-S 10-22mm; EF-S 18-135mm IS STM; EF 28-300mm F3.5-5.6L; EF 70-300mm IS USM; EF 70-200mm F2.8L IS-II; EF 100-400mm f4.5-5.6L IS; EXT 1.4-II & 2.0-III; The more I learn the less I know.

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DreDaze
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Mar 29, 2017 22:50 |  #26

so just a quick update...mainly because when i searched high and low, i couldn't find a price for front element replacement on the sigma 8-16mm...so i sent it to sigma...they had said it would be $150 to replace the front element...but the total ended up being $200 +$20 shipping...the front element was replaced, as well as the front hood section, as well as adding a lens cap

so all in all i'm in for $330 with a perfect piece of glass on the front now...i'm content with that...hoping to get out tomorrow with it


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MikeWa
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Seattle Washington
Mar 30, 2017 21:47 |  #27

DreDaze wrote in post #18314576 (external link)
so just a quick update...mainly because when i searched high and low, i couldn't find a price for front element replacement on the sigma 8-16mm...so i sent it to sigma...they had said it would be $150 to replace the front element...but the total ended up being $200 +$20 shipping...the front element was replaced, as well as the front hood section, as well as adding a lens cap

so all in all i'm in for $330 with a perfect piece of glass on the front now...i'm content with that...hoping to get out tomorrow with it


Enjoy your lens.

Mike


Mike...G9; 7D; 7D Mark II; EF-S 10-22mm; EF-S 18-135mm IS STM; EF 28-300mm F3.5-5.6L; EF 70-300mm IS USM; EF 70-200mm F2.8L IS-II; EF 100-400mm f4.5-5.6L IS; EXT 1.4-II & 2.0-III; The more I learn the less I know.

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what to expect from coating loss on lens
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