jackperk Posted April 23, 2015 Share #1 Posted April 23, 2015 Advertisement (gone after registration) Shot a 5 second exposure to blur waterfall. Used 9 stop ND filter. Colors were ruined. Green leaves became orange- brown. Etc. Been unable to correct yet in LR. Any ideas re: cause and cure? Please. Link to post Share on other sites More sharing options...
Advertisement Posted April 23, 2015 Posted April 23, 2015 Hi jackperk, Take a look here Long exposure yields freaky colors. I'm sure you'll find what you were looking for!
pico Posted April 23, 2015 Share #2 Posted April 23, 2015 What brand of ND? Some do tinge the color. Link to post Share on other sites More sharing options...
jackperk Posted April 24, 2015 Author Share #3 Posted April 24, 2015 It's a Tiffen. Shouldn't expect it to be poor quality. Link to post Share on other sites More sharing options...
pico Posted April 24, 2015 Share #4 Posted April 24, 2015 Tiffen does not make a 9 stop ND. They do have a .09, 3 stop. Sorry I cannot help further. Link to post Share on other sites More sharing options...
jackperk Posted April 24, 2015 Author Share #5 Posted April 24, 2015 This is a variable. And it is Tiffen which at its max is = a 9 stop ND I'm told Link to post Share on other sites More sharing options...
pico Posted April 24, 2015 Share #6 Posted April 24, 2015 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. Link to post Share on other sites More sharing options...
jackperk Posted April 24, 2015 Author Share #7 Posted April 24, 2015 Advertisement (gone after registration) Where does Tiffen warn such a thing? Makes it a bum product they shouldn't be selling. WARNING ALL! Link to post Share on other sites More sharing options...
pico Posted April 24, 2015 Share #8 Posted April 24, 2015 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. LINK to source Link to post Share on other sites More sharing options...
Daedalus2000 Posted April 24, 2015 Share #9 Posted April 24, 2015 http://jonasraskphotography.com/2014/05/12/nd-filter-dont-go-variable/ Link to post Share on other sites More sharing options...
pico Posted April 24, 2015 Share #10 Posted April 24, 2015 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! Link to post Share on other sites More sharing options...
bencoyote Posted April 24, 2015 Share #11 Posted April 24, 2015 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. Link to post Share on other sites More sharing options...
pico Posted April 24, 2015 Share #12 Posted April 24, 2015 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.) Link to post Share on other sites More sharing options...
bencoyote Posted April 25, 2015 Share #13 Posted April 25, 2015 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. Link to post Share on other sites More sharing options...
jackperk Posted April 26, 2015 Author Share #14 Posted April 26, 2015 I'd like to thank Pico et al for informing me on this. The great value of a forum like this. Link to post Share on other sites More sharing options...
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