Circular polarizing filter<<help>>


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noob117

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Oct 16, 2006
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#1
i just got this filter and i am not sure how to use it.
i know the turning thing at the end to adjust the amount of polarization.
but how i know what effect i get when i turn where?


refer to pix
i dun know if this is a defect..
owners of this filter ur help is most welcome :)


thks
 

night86mare

Deregistered
Aug 25, 2006
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#3
When you have mounted it, just keep turning the OUTER portion. Don't unscrew it. You should see the skies turning more blue. If skies are not blue enough to see a difference, just look at reflections on glass, etc. Sure got difference. Of course not like magic saturation tool la, but it should work somewhat.
 

noob117

New Member
Oct 16, 2006
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#4
ok i dun see any difference on the blur skys
but i tot reflections are due to the angle?
any links on detailed instructions? thks.
 

noob117

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Oct 16, 2006
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#6
lol
sry spell wrong
:bsmilie:
not as easy to use as i tot...
 

cantaresg

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Feb 23, 2007
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#7
actually its quite easy to use. when I started, i too made the mistake of unscrewing the cpl filter instead of turning the polariser. It should work.
 

Hoky

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Mar 17, 2004
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hoky.multiply.com
#8
lol
sry spell wrong
:bsmilie:
not as easy to use as i tot...
Looking thru the VF can be a little difficult to tell the degree of polarization from just the skies. Try the reflections of water instead.

Also remember the 90 degrees (perpendicular to sun's ray) rule of thumb.
 

Dec 7, 2006
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west side!
#10
defn not a defect.

mount ur cam on the tripod and fix ur image on a clear patch of sky
mounting it on a tripod allows u to concentrate on the image at hand
e.g. u can try this from any highrise building

try turning the cpl to see the effect, u may or may not notice it
turn the cpl and take a few pics and view it on screen to see noticable difference
 

satay16

Senior Member
Jan 14, 2006
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#12
just remember, polarizers makes grass greener by blocking(reducing) reflection of the foilage(which causes a decrease in contrast). so just rotate till you find the surrounding objects have least reflection. that's the one you want.
 

kirkG

New Member
Nov 15, 2006
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#13
Try it on a power on tv and LCD screen u will see the big diff when u turn ur filter.
 

megaweb

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Jan 17, 2002
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megaweb.clubsnap.org
#15
You can test CPL w/o using a camera. Just see thru it against something reflective or sky. Turn the outer layer of the filter until you see the reflection reduce.
 

catchlights

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Sep 27, 2004
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#16
just some reminders.

polarizing filter able to minimize reflections in many areas, but unable to remove reflections on metallic surface, highlights or hotspots.

if you don't believe this, then you can try on a mirror to see whether are you able to remove your own reflection.

and also, stack two polarizing filters together will not make blue sky bluer, don't believe? anyone want to try it out and tell me what will happen?
 

denmad

New Member
Mar 17, 2005
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#17
and also, stack two polarizing filters together will not make blue sky bluer, don't believe? anyone want to try it out and tell me what will happen?
:bsmilie: Quantum mechanics.
 

zac08

Senior Member
Feb 21, 2005
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#18
2 filters together and you'd get a wonderful variable ND. You can almost cut off all the light.
 

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