Hoya CPL - rotate ring and oil?
I just got a HOYA PRO1 CPL 67mm.
I have noticed that it has a rotating ring. (on the half part where the thread to screw on the lens is)
what is that for?
also there came out something that looks like oil from the middle, that has now stained the external part of the filter
|"Hole in the Wall" by gordonpritchard|
|This is Osterdeich by Olaf R|
from Sports Fan(s)
|Rufous Hummingbird by jdc562|
from A Big Year - birds
|SALUTING by TX Photo Doc|
from - The True Blue American Male - (Portrait in Full Colours Only + A Border)