Philipp Kunzli Posted May 20, 2016 Share Posted May 20, 2016 (edited) Hey Everybody For an upcoming shoot, I was testing a few frame rates and so on. Unfortunately I didn't have a IR Cut ND on hand. Since I was going for full open, I sacked a regular ND1.2 and a ND.9 together. The test was shot on the Alexa (first series). I was quite surprised when I saw the footage. The scarf I'm wearing in the image has in real life no color! Thru the whole test footage it has this reddish color. I my opinion quite strong... Is a missing IR CUT that strong? What's your thoughts. Edited May 20, 2016 by Philipp Kunzli Link to comment Share on other sites More sharing options...
Premium Member David Mullen ASC Posted May 20, 2016 Premium Member Share Posted May 20, 2016 There are many articles showing IR pollution on different fabrics such as this test: http://www.erwinvandijck.com/nieuws/test-infrared-pollution-filtering Keep in mind that different cameras and sensors have different sensitivities to IR, and some are more sensitive to near-infrared than infrared and need a different IR cut. Lots of articles on the topic for you to search out. Here's a good one: http://www.creativeplanetnetwork.com/news/news-articles/dv101-filtration-situation-investigating-infrared-cutting-filters-arris-alexa/423084 Link to comment Share on other sites More sharing options...
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