Cleaning of rear glass element


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wong1979

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Aug 16, 2005
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#1
Hi, I just bought a EFS 17-85mm from a fellow CSer. All else is good except for dust specks on the rear element surface, I suspect these are cigarette ash and some may have stuck onto it despite blowing. Can I use a lint free cloth to clean just like the front element? TIA..
 

Snoweagle

Senior Member
Jan 26, 2005
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Pasir Ris, Singapore
#3
wong1979 said:
Hi, I just bought a EFS 17-85mm from a fellow CSer. All else is good except for dust specks on the rear element surface, I suspect these are cigarette ash and some may have stuck onto it despite blowing. Can I use a lint free cloth to clean just like the front element? TIA..
You can also use a lens tissue.
 

wong1979

New Member
Aug 16, 2005
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#4
Yup, but its different ffrom cleaning the front, where the front won't get any dust to get inside. With the rear cleaning, I'm just worried that it may get inside and that would be impossible to clean...well guessed I just have to be careful...Thx
 

Snoweagle

Senior Member
Jan 26, 2005
14,002
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Pasir Ris, Singapore
#5
wong1979 said:
Yup, but its different ffrom cleaning the front, where the front won't get any dust to get inside. With the rear cleaning, I'm just worried that it may get inside and that would be impossible to clean...well guessed I just have to be careful...Thx
Everytime i clean the elements clean with my lens tissue of microfiber cloth, i use my blower to blow off any remaining dust on it.
 

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