Henri Toivonen a �crit :
Alan Chan wrote:
The filter thread ring should be held by 3 screws which are covered by the retaining ring. Use a piece of thick rubber to remove the ring and you should be able to tighten those screws. Normally threadlock was applied to those screws in the factory. If you don't see any, it means the lens was serviced before.
Regards, Alan Chan http://www.pbase.com/wlachan
I'm sorry Alan, but I'm not getting it. Could you please explain further? What is a retaining ring? :-)
English is not my first language.
The right tool: http://www.micro-tools.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=MT&Product_Code=LR-KIT
Michel

