Wednesday, February 25, 2009
The EX1/EX3 built-in Hot Mirrors suck. Or do they? One way to find out…
The Sony EX1 and EX3 are great cameras for the price, but they do have some fairly obvious issues with IR/far red when used with neutral density filters in front of the lens. This test taught me far more, though, than just what filters to use to eliminate a color problem on these cameras: I learned never to make assumptions about how a piece of equipment works until I’ve tested all possible options.
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Monday, February 23, 2009
I’ve seen this in stills and it’s very convincing. Next week I’m doing to do it in motion.
Traditionally used to create the illusion of impossibly deep focus, tilt-shift effects are now being used to do the exact opposite—with surprising results.
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Wednesday, February 18, 2009
We test IR filters from three major manufacturers to see which does what on the F35
Technically the Sony F35 isn’t sensitive to infrared, but it is sensitive to far red. The difference will save you a lot of money on filters.
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Tuesday, February 10, 2009
We test Hot Mirror filters from three major manufacturers to see which does what on the RED
Not all infrared or Hot Mirror filters are made the same, and not all work the same way on different cameras. In this test we looked at filters from Schneider, Formatt and Tiffen to see how they perform on the RED ONE.
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Monday, February 02, 2009
What you need to know about log curves—with hardly any math at all
For a couple of weeks I’ve been researching the mystery of Sony S-Log, and log curves in general, trying to determine what they are, what they do, and whether they are a good thing or not. After interviewing three different people (George Palmer of HDPix, Michael Bravin of BandPro and especially Steve Shaw of Digital Praxis) I finally had a sartori. I get it now. It’s really cool. And it’s surprisingly simple.
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Sunday, February 01, 2009
What adding and subtracting gain really does, and what you need to know before you use it
All of us use gain at one point or another. Positive gain saves us when we end up shooting in a dark location, and negative gain makes us feel slightly superior because we’re giving our client an image that is remarkably noise-free. But nothing is for free - you should definitely think twice before you hit that gain switch, because it’s not just a matter of boosting or hiding noise. You’re reducing your dynamic range at the same time, and that’s not something we should do lightly.
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