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| p.1 #5 · Nikon 600mm F/4 VR Circular Polarizer Filter |
As Chris, I have one but rarely have used it.
Some samples using telephotos (but not with the 600/4VR):
Ardea alba by labecoaves, on Flickr
D3 + Nikkor 400mm f/2.8 AF-I + TC20EIII [=800 f/5.6 af], tripod, gimbal head, ISO 320, 1/400s, f/11(5.6), ~ 33% crop of an already cropped D3 5:4 crop mode.
_D7K4454 800ais+CPL by labecoaves, on Flickr
Nikkor 800mm ais f/5.6 + Circular Polarizer, ~ 30% crop, tripod+ Wimberley gimbal head.
And some comparisons:
Just NC filter:
800mm + NC filter by labecoaves, on Flickr
Nikkor 800mm f/5.6 AIS EDIF at f/11 1/400s, just with the "default" drop in rear NC filter. According to Google Earth left tower is at 3.8 km, chestnut buildings in the centre at 3.9 km, right tower at 4.1 km, and mountainous Atlantic forest in the background at 14 km!
CPL drop in filter:
800mm + CPL filter by labecoaves, on Flickr
Nikkor 800mm f/5.6 AIS EDIF at f/11 1/160s, now with the Circular Polarizer drop in rear filter.
Colours are richer and the Atlantic Forest in the background (14 km away with a polluted atmosphere!) is more visible.
Another simple test on the effect of Polarizer Circular Filter.
This first image is without the CPL. Tower 12 Km away - CPL filter applied
Tower 12 Km away - no CPL filter by labecoaves, on Flickr
D300 + TC20EIII + Nikkor 800mm f/5.6 AIS IF-ED (=1600mm f/11) + tripod, ISO 200, f/22 at 1/80s.
CPL filter applied
Tower 12 Km away - CPL filter applied by labecoaves, on Flickr
D300 + TC20EIII + Nikkor 800mm f/5.6 AIS IF-ED (=1600mm f/11) + tripod, ISO 200, f/22 at 1/15s.
Te bluish haze cast is gone and deep/truest colours appears through 12 km of atmosphere.
The best effect is at 90° angle of the subject in relation to the sun.
It is not cheap, but in some circunstance can be very useful to fix excessive reflections on water or leafs, haze and add some colour saturation. Hope this can be useful to you.