Tag Archives: cinegamma

Choosing the right gamma curve.

One of the most common questions I get asked is “which gamma curve should I use?”. Well it’s not an easy one to answer because it will depend on many things. There is no one-fits-all gamma curve. Different gamma curves … Continue reading

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Convergent Design Gemini throws up a ProRes Issue. NOT THE PROBLEM I THOUGHT IT IS

OK, I wrote about this without digging deep enough. If you read the original article I claimed that ProRes was clipping my files at 104%. Well it’s NOT. The ProRes files are just fine, BUT some Quick Time applications are … Continue reading

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Convergent Design Gemini throws up a ProRes Issue. Watch out for Clipping with S-Log.

OK, I wrote about this without digging deep enough. If you read the original article I claimed that ProRes was clipping my files at 104%. Well it’s NOT. The ProRes files are just fine, BUT some Quick Time applications are … Continue reading

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Exposing when shooting S-Log.

The question over whether to deliberately underexpose or not with S-Log came up recently. I believe that you need to evaluate the entire scene when shooting S-Log and that the often heard “underexpose by a stop” methodology may have some … Continue reading

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More on S-Log and Gamma Curves

A lot of the issues with any camera and the dynamic range it can record are not due to limitations of the cameras hardware but to retain compatibility with existing display technologies, in particular the good old fashioned TV set … Continue reading

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When should I use a Cinegamma or Hypergamma?

Cinegammas are designed to be graded. The shape of the curve with steadily increasing compression from around 65-70% upwards tends to lead to a flat looking image, but maximises the cameras latitude (although similar can be achieved with a standard … Continue reading

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Understanding Gamma, Cinegamma, Hypergamma and S-Log

The graph to the left shows and idealised, normal gamma curve for a video production chain. The main thing to observe is that the curve is in fact pretty close to a straight line (actual gamma curves are very gentle, … Continue reading

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Understanding Gamma, Cinegamma, Hypergamma and S-Log

The graph to the left shows and idealised, normal gamma curve for a video production chain. The main thing to observe is that the curve is in fact pretty close to a straight line (actual gamma curves are very gentle, … Continue reading

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Brewing up a Scene File: Gamma and Knee

Before anyone complains that I have missed stuff out or that some technical detail is not quite right, one of the things I’m trying to do here is simplify the hows and why’s to try and make it easier for … Continue reading

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XDCAM EX Cinegammas

I have been doing a lot of research into the best gammas to use on the EX’s for different lighting situations. The cinegammas are designed for shooting footage that will be graded, the images they produce are not entirely natural … Continue reading

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