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11/13/2004 10:21:40 PM · #1 |
What would be a good rule of thumb when its good to use a polorize filter?
Message edited by author 2004-11-13 22:21:50.
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11/13/2004 10:30:13 PM · #2 |
Use a polarizer when the scene is sunny with a lot of contrast created by the sunlight.
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11/13/2004 10:30:50 PM · #3 |
| If you need to darken the sky or to reduce reflections are the most common uses. |
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11/13/2004 10:36:12 PM · #4 |
Think of a polarizer as sunglasses for your camera. You would use a polarizer in any situation where you would wear sunglasses over your eyes. As GeneralE mentions, reduced reflections and richer color are side effects of the polarization and not the primary effect of the filter.
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11/13/2004 10:38:57 PM · #5 |
| You can also use a polarizer to get rid of non-metalic reflections from water or glass. It's most effective with the sun at about 45 degrees high and 90 degrees to your lens. |
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11/13/2004 11:43:32 PM · #6 |
And... to proliferate certain textures ( coats of animals, feathers, that sort of thing).
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11/13/2004 11:45:28 PM · #7 |
Originally posted by gusto:
What would be a good rule of thumb when its good to use a polorize filter? |
sorry i'm off-beat.... the dog, i must assume it's an AMSTAF? |
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11/14/2004 01:06:38 AM · #8 |
Originally posted by jmsetzler:
Think of a polarizer as sunglasses for your camera. |
In fact, many people (including your's truly) "experiment" by holding polarized sunglasses in front of the camera lens. You will probably have to rotate the plane of polarization to achieve the desired effect. |
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11/14/2004 01:17:31 AM · #9 |
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11/14/2004 04:49:02 AM · #10 |
| Remember though a polariser works only when the sun is at I think a 45 degree angle to it. If it isnt you have basically got a ND filter as well . |
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11/14/2004 08:48:47 AM · #11 |
Some nice results to be had using one.
polarised
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11/14/2004 12:30:53 PM · #12 |
I get a lot of morning marine layer fog here where I live. I was out shooting a tree in a haze of fog one morning and I put the polarize filter on just to see if it would give me a blue sky cast or something through the fog. It completely eliminated the fog. I mean completely gone as if I were standing in the sun. I guess the light bouncing off the dropplets of water is what the polarizer hides. Now I use a polarizer in the fog too.
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11/14/2004 12:35:50 PM · #13 |
| Rainbows can be enhanced with a polariser. |
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11/14/2004 04:41:33 PM · #14 |
I used one for the b/w 2 challenge to help darken the sky.
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11/14/2004 05:25:13 PM · #15 |
Originally posted by kiwinick:
Remember though a polariser works only when the sun is at I think a 45 degree angle to it. If it isnt you have basically got a ND filter as well . |
I think a polarizer works best, or is most effective, when your camera is pointed 90 degrees from the sun. The method I use to find where it is most effective is to make a "gun" with your hand - point your forefinger at the sun and stick your thumb straight up (at a 90 degree angle to your forefinger). Rotate your hand while keeping the forefinger pointer directly at the sun and the places where your thumb points to the horizon are where the polarizer is at it's peak effectiveness. It's effect gradually diminishes as you move away from this direction.
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