Not 'block' lah. If to block light you can try lens cap ;p .kenele said:Used a neutral density filter . Neutral density filters block light from entering the camera without altering the color or tone of the light. They make the scene darker, allowing a longer shutter speed.
http://forums.clubsnap.org/showthread.php?t=193352&page=2bent said:approx how much do circular polarisers and ND filters cost for say a 52mm?
oh, thanks a lot!Artosoft said: