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Long exposure yields freaky colors


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Oh, their variable ND. It goes to 8 stops, but Tiffen warns that using the maximum density can cause color shifts, and some bizarre artifacts, especially in full frame digital. You might have to back off the density. It is also possible that your sample has been heat damaged.

Edited by pico
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IMPORTANT:

Only use your Variable ND within its recommended 2 to 8 stop range. If you go beyond the “MAX”, you may experience an uneven exposure or color shift that appears as an “X bar” in the image. This is more common when using higher densities on full frame cameras; however, can be experienced on any camera. This is a common issue– it’s the law of physics when combining two polarizing filters; however, this issue can be eliminated. First, adjust your focal length and then reduce the density (stop value) setting by rotating the filter ring until the color shift disappears.

 

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Edited by pico
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Thank you for that, Daedalus. It is difficult for new photographers to conceive of the nature of polarizing filters. That is a cogent article.

 

To jackperk - don't beat yourself up. Many of us make major errors largely because we believe the general principles without being aware of the particulars. 

 

Oh, and welcome!

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Opportunity for artistic exploration? :-)

Like finger manipulated Polaroids, shooting expired film, cross processing...your default perception of reality is not the only artistic product. Have fun with the effect.

 

Accidents are a product of nature. Art transcends nature.

 

(I hope that is upstairs snotty enough.)

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Accidents are a product of nature. Art transcends nature.

 

(I hope that is upstairs snotty enough.)

 

The first time it is an accident, the 2-4000th time it is mastering the media and incorporating the effect into the process of creation. ;-) 

 

Turning a pedestrian landscape with a waterfall smoothed out by a long exposure into something that has "freaky colors" by intentionally making use of the color shifts in the filter sounds like an interesting project to me. The unevenness of the color shift especially at higher levels of ND and with wider lenses is a kind of effect that I've never seen explored before. Filter makers have spent so much technological effort trying to make sure that these kinds of things don't happen that the effect is rarely seen. The art would be in learning how to make use of the effect compositionally.

Edited by bencoyote
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