Cleaning of rear glass element

[wong1979]

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..

 

[yanyewkay]

yups. that's what i do

 

[Snoweagle]

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]

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]

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.

 

[Isaiahfortythirtyone]

dust usually wont affect picture quality.

 

[Stoned]

It does on the rear element.

 

[Snoweagle]

I don't like any dust on my lens elements, regardless of front or rear.

 

[burmesterhifi]

do you guys prefer to clean it wet or dry?

 

[Snoweagle]

do you guys prefer to clean it wet or dry?

Dry...if it's wet, it may cause more stains after drying.