Lens Rubber Ring White

My other lenses don t have the problem.

Lens rubber ring white.

They are in a camera bag so i was a little surpised to see this. It s about 4 years old and i bought it new from amazon. Best was to return them to black. The rubber on my 70 200 turn white and it looks ugly.

I ve noticed some of my less used lenses are have the rubber on the focus and zoom ring turn white ish. The cleaner removes white bloom oxidation and fungus. We are excited to introduce the delicate lens rubber cleaner essential for lens and camera rubber grip maintenance. Simply swipe the cleaner tip on the oxidised or molded rubber the white cleansing fluid will rejuvenate the rubber in just a few seconds.

Noticed if i rub with my hand the white comes of but its hard get in the groves. The rubber on focus ring is fine.