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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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Jan 31, 2017 19:54 |  #16

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


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ZoneV
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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
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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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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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Feb 01, 2017 07:37 |  #20

Have you considered removing the first lens element ?  :p


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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,
Film gear: Elan 7NE / EOS T2
Yashica FX-D & FX-3 Super 2000 / DSB 28mm f/2.8 / 50mm ML f/2 / 135mm ML f/2.8 / Yashica ML 28-85mm f/3.5-4.5 / Tokina 70-210mm ML f/4.

  
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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.


Sony A7rii/A7riii - FE 12-24/4 - FE 24-240 - FE 28/2 - FE 35/2.8 - CV 35/1.7 - FE 50/1.8 - FE 85/1.8 - EF 135/1.8 Art - F 600/5.6 - CZ 35-70, 100-300 - Astro Rok 14/2.8, 24/1.4 - Tamron 28-75 f2.8, 70-200 f2.8 VC

  
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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

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

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


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MikeWa
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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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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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