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AF Nikkor 20mm f2.8 D lens help needed
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<blockquote data-quote="480sparky" data-source="post: 509058" data-attributes="member: 15805"><p>I use a thin B+W, but mine is 77mm, and I've never used it on that wide of a lens. 28 is pretty much my limit.</p><p></p><p>Polarizers effectiveness is related to the angle between it, the subject and the light source. Since the 20mm has a 94° FOV, it's capable of capturing a scene where part of it receives the full effect of polarized light, while another part see NO effect. This is very apparent when shooting a clear blue sky.</p><p></p><p>For instance, if you were to stand out in an open field, and face south at sunrise, a line directly north and south over your head would see the full effect of the POL, but the east and west horizons would see no effect.</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/Sunrise.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The effect at, say, 10AM:</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/10AM.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>And at noon:</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/Noon.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>3PM:</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/330.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>And sunset:</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/Sunset.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p></p><p></p><p>To show this, I took this shot looking north (without a filter) in midafternoon:</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/NoFilter.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Slap on a CPL, and I get this:</p><p></p><p><img src="http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/WithFilter.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="480sparky, post: 509058, member: 15805"] I use a thin B+W, but mine is 77mm, and I've never used it on that wide of a lens. 28 is pretty much my limit. Polarizers effectiveness is related to the angle between it, the subject and the light source. Since the 20mm has a 94° FOV, it's capable of capturing a scene where part of it receives the full effect of polarized light, while another part see NO effect. This is very apparent when shooting a clear blue sky. For instance, if you were to stand out in an open field, and face south at sunrise, a line directly north and south over your head would see the full effect of the POL, but the east and west horizons would see no effect. [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/Sunrise.jpg[/IMG] The effect at, say, 10AM: [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/10AM.jpg[/IMG] And at noon: [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/Noon.jpg[/IMG] 3PM: [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/330.jpg[/IMG] And sunset: [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/Sunset.jpg[/IMG] To show this, I took this shot looking north (without a filter) in midafternoon: [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/NoFilter.jpg[/IMG] Slap on a CPL, and I get this: [IMG]http://i214.photobucket.com/albums/cc172/480sparky/Photography/Polarizer%20Ultra%20Wide%20lens/WithFilter.jpg[/IMG] [/QUOTE]
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AF Nikkor 20mm f2.8 D lens help needed
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