polariser and close-up filters.....


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Ayumi

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Mar 26, 2002
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how do u use a polariser....
i keep turning the filter......no use leh....
cannot observe any difference......

and for the close-up filter....
if i add the filter in front of my 100-300 lens....
wont it be turned into a bigger range????
something like a teleconverter???

thanks
 

mervlam

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Apr 26, 2002
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Polarizing filters improve photographic effects by reducing reflected light, which adversely affects image definition. They are used to eliminate reflections on glass, water, etc. and to make the sky more blue as well as increase the overall contrast for scenes captured in dull lighting or low contrast conditions.

http://www.camera.canon.com.my/photography/film/2000/films15/index.htm

Close-up lens (or filters) help you to take close-up macros of objects by decreasing the minimum focusing distance of a camera lens

http://www.camera.canon.com.my/photography/film/2001/films23/index.htm
 

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