Title: No so good for digital
Review: This filter is interesting in concept. Overall it has a warming effect, but it is not exactly a warming filter. What is does is, it allows all reds and oranges through. Most greens and blues come through, not so much yellow.As a result, reds tend to be stronger and more pure. I once pointed it at a somewhat dirty red stop sign and it actually looked a bit cleaner.The problem with this filter is that it is very hit and miss (mostly) miss with most subjects. I tooks a photo of a asphalt street and it came out pink. In fact most whites come out a little pink. When you combine this with a digital camera's white balance system, consistant results are difficult to get.Photoshop has more options for color correcting than a single filter ever could. Both time and money are better spent on that
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