Leaking some thing from full zoom
I have a sigma uc zoom 70-210mm 1:4-5.6 multi-coated lens and when i push out to focus at 210 there is a piece of string that comes out which looks like the seal to me with some grease i think is there a manual for me too repair it my selve it is not in warranty and i have had it for 14 years so not paying the price in the shops.
Cameras - Sigma - 70-210/4-5.6 UC II AF Zoom Lens for SA 760110
Answers & Comments
The string is a felt dust stopper if you take off the rubber zoom grip you will see black tape peel off the tape and the base of the zoom ring will slide off just remove the rest of the felt clean the barrels and put back it will be ok without the felt you can stick back the part of the zoom ring with tape