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09/25/2004 11:49:36 AM · #1 |
| I don't have problem using the circular polarizer to eliminate obvious reflections but it is also said you can use it to enhance colors or the sky, but when I am trying to rotate it to the optimal position I just cannot see difference throughout a full turn. Is it sometimes really difficult to position the polarizer for everybody or there is a trick that I don't know yet? |
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09/25/2004 12:01:22 PM · #2 |
If your camera is on automatic you won't see much effect in the viewfinder since it adjust exposure automatically. Set it on manual and it becomes much clearer.
Also, the effect depends on the angle towards to sun, if the sunlight is from the side the effect is very strong, if it is from behind, you will hardly notice it. |
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09/25/2004 12:04:32 PM · #3 |
Even on manual, it is hard to see the difference when rotating a polariser with my FZ10.
What you need is this lifesaving and extremely thorough article: Using a polarizer effectively without TTL control
In fact, anybody with a polariser should read this. |
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09/25/2004 12:13:09 PM · #4 |
thanks for that link! and redpanda, i'm glad you asked that question, i was thinking that i was just a big ol' failure! :)
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09/25/2004 02:44:10 PM · #5 |
| Circular polarizers will exhibit little or no difference with rotation. A linear polarizer will yield a dramtic difference in the appearance of the sky or light reflected from windows. |
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09/25/2004 03:05:04 PM · #6 |
I can usually see a fair change for around 15 Degrees of the turn of my circular polariser. If I can't see the change in the viewfinder or on the main LCD, then the max change shows up quite clearly by its effect on the little live histogram (if your camera has this feature).
The polariser has been great for shots in Africa, but the sky is so hazy here in Ireland that the filter seldom has the effect I am looking for (skies and foliage etc.)
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09/25/2004 03:07:14 PM · #7 |
| I have been told that polarisers work best when you are shooting perpendicularly to the sunlight, although with the lack of decent sunshine here I have yet to do any real testing of this theory! |
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09/25/2004 04:03:59 PM · #8 |
Originally posted by ElGordo:
Circular polarizers will exhibit little or no difference with rotation. A linear polarizer will yield a dramtic difference in the appearance of the sky or light reflected from windows. |
The only difference between the circular and linear polarizers is the addition of a quarter-wave plate to "depolarize" the output of the polarizer. The visual effect of the linear and circular polarizers should be exactly the same.
I just finished some casual shooting around downtown Chicago, with beautiful blue skies, and I can tell you the (circular) polarizer DOES make a big difference. |
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09/25/2004 04:24:03 PM · #9 |
Originally posted by ElGordo:
Circular polarizers will exhibit little or no difference with rotation. A linear polarizer will yield a dramtic difference in the appearance of the sky or light reflected from windows. |
Where did you get that idea? What would be the point of them? |
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