how do u clean your ND filter?


lamberry

New Member
Feb 2, 2010
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was surprise to see many dust spots on my ND filter even thought it was kept in the box that comes with the ND filter

have tried to clean using micro fibre cloth but only managed to clear away some but still have some stains
 

Clean it the same way you clean lenses.
 

Wash it
 

first i blow with the blower (which should removes at least 90-95% of the dust) then i will wipe with cloth if needed.

think is the "styrofoam" padding that is attracting dust.
 

first i blow with the blower (which should removes at least 90-95% of the dust) then i will wipe with cloth if needed.

think is the "styrofoam" padding that is attracting dust.
hi sinned79, i think u're right. the styrofoam is the cause of it
where do u store your filter? is there a way to prevent the dust particles?
 

With stubborn stains, use lens tissue. Fingerprints or easily removeable using microfibre cloth or the kind they use to clean spectacles. For dust, either blower or the lenspens brush.

I don't advocate any other cloth apart from the microfibre as other material it may cause scratches. My old spectacles has fine scratches due to prolong cleaning with shirt/hanky/t-shirts. Do remember to wash the microfiber cloth too.

Store the filters back to where they belong. If there is dust in the containers, blow it off.

Dust is everywhere. Can't possibly clean out every single bit. A speck or 2 will not appear in the pictures.
 

hi sinned79, i think u're right. the styrofoam is the cause of it
where do u store your filter? is there a way to prevent the dust particles?

You can keep it in a clean room. And never remove it from the clean room. Best if you live in it too. :bsmilie:
 

btw, what mode is recommended when shooting with ND filter?
 

btw, i notice some exposure shot can be set to 100sec
how did they do that? shooting in bulb?
 

Ah... so you know about bulb mode ;)

Why you so like that .... :bsmilie:

BTW I just cleaned my filters exactly like how i clean my lenses ..
 

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but when i shoot in f22 , exposure like 50 secs all i get is a white screen
is it becos not long enough exposure?
 

but when i shoot in f22 , exposure like 50 secs all i get is a white screen
is it becos not long enough exposure?

it means u have over exposed the picture. u need to meter the scene correctly and use the right aperture & shutter speed. u can only do long exposures when the light is not so strong or u are using a ND filter.
 

it means u have over exposed the picture. u need to meter the scene correctly and use the right aperture & shutter speed. u can only do long exposures when the light is not so strong or u are using a ND filter.
i'm using the ND filter to shoot. but all i get is a white screen
how to meter the scene?
 

but when i shoot in f22 , exposure like 50 secs all i get is a white screen
is it becos not long enough exposure?

White - overexpose, black under expose ... so if over, you cut down exposure, under you lengthen the exposure ....