polarisers


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jeanie

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May 19, 2005
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#1
how do you use a polariser?screw on and fire away?

can photoshop CS2 replicate the end result of using a polar?
 

ryuggen

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Apr 5, 2006
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#3
screw on the polarizer and turn the front panel. It gives a 'more blue sky'. Not only that, you can shoot through glass, water and flat area without much reflection.
 

Deadpoet

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Oct 18, 2004
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ortega

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#5
a pola's main purpose is to cut polarised light

after putting it in front of your lens, you still need to fiddle around with it for maximum effect
 

jeff49er

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Apr 11, 2003
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#6
FYI the BW cir polarizers 77mm at CP are sold out

No choice I had to get the Hoya.

Cir polarizers are good for outdoor shoot and have to use your fingers to rotate till u get the effect u want.
 

glensky

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Aug 11, 2004
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#7
how do you use a polariser?screw on and fire away?

can photoshop CS2 replicate the end result of using a polar?
hav commercial plugin 4 that.
 

zac08

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Feb 21, 2005
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#9
hav commercial plugin 4 that.
Well, then.... pray tell... how do you replicate the effects of a CP-L when you're shooting at surfaces of water and trying to capture the fishes just under the surface without the CP-L and using CS... :think:
 

jeanie

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May 19, 2005
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#12
but people told me polarisers must shoot what 90 degrees to the sunlight or whatsoever.can someone explain in detail?
 

ortega

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#14
but people told me polarisers must shoot what 90 degrees to the sunlight or whatsoever.can someone explain in detail?
something like that, but best is to use your eyes and judge as you turn the pola
once you see what works best, just go for it
 

jeanie

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May 19, 2005
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#15
something like that, but best is to use your eyes and judge as you turn the pola
once you see what works best, just go for it
so i meter with the polar on?
or meter first then polar on?
 

Michael

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Apr 5, 2005
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#17
but people told me polarisers must shoot what 90 degrees to the sunlight or whatsoever.can someone explain in detail?
This time for the public, but only the short version ;)

light is a funny thing, it acts sometimes like a particle and sometimes like a wave. With a polariser we are using its wave properties. As the sun light travels through the atmospere it is scattered or spread causing the blue sky during the day and reddish skies at dawn or dusk. Scatter light is polarized and it is strongly polarized perpediculare to the direction of primary source (the sun). Hence, polarizing effects are strongest 90deg to the sun.

let me know if you want the long version as well... :cool:
 

jeanie

Senior Member
May 19, 2005
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#20
This time for the public, but only the short version ;)

light is a funny thing, it acts sometimes like a particle and sometimes like a wave. With a polariser we are using its wave properties. As the sun light travels through the atmospere it is scattered or spread causing the blue sky during the day and reddish skies at dawn or dusk. Scatter light is polarized and it is strongly polarized perpediculare to the direction of primary source (the sun). Hence, polarizing effects are strongest 90deg to the sun.

let me know if you want the long version as well... :cool:
you know me.i want the full details.i dun wan to learn 1/2 1/2 bucket of water.:bsmilie:

so HOW do i measure 90degrees?
:dunno:
 

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