Tag Archives: gamma

Exposing and Using S-Log2 on the Sony A7s. Part One: Gamma and Exposure.

This document has been prepared independently of Sony. It is based on my own findings having used the camera and tested various exposure levels and methods. LUT’s to accompany this article can be found here. If you find this useful … Continue reading

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Major Update to my Cine-EI guide for the PMW-F55 and PMW-F5

I have just published a major update to my guide to Cine-EI on the PMW-F55 and F5. The guide now goes in to a lot more depth. I have tried to make it easy to understand but it is also … Continue reading

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What is a Gamut or Color Space and why do I need to know about it?

Well I have set myself quite a challenge here as this is a tough one to describe and explain. Not so much perhaps because it’s difficult, but just because it’s hard to visualise, as you will see. First of all … Continue reading

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What’s the difference between Latitude and Dynamic Range?

These two words, latitude and dynamic range are often confused and are often used interchangeably. ┬áSometimes they can be the same thing (although rare), sometimes they may be completely different. So what is the difference and why do you have … Continue reading

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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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To shoot flat or not to shoot flat?

There is a lot of hype around shooting flat. Shooting flat has become a fashionable way to shoot and many individuals and companies have released camera settings said to provide the flattest images or to maximise the camera dynamic range. … Continue reading

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S-Log, Latitude, Dynamic Range and EI S-log. Or how to modify your exposure range with EI S-Log

The big issue most people have when working with log and exposing mid grey at 38 is that when you look at it on a standard monitor without any lookup tables it looks underexposed. The assumption therefore is that it … Continue reading

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REC-709 – A true REC-709 camera should only have 5 stops of dynamic range!

In theory if two cameras are both set to REC-709 then the dynamic range should be identical as both cameras responses will be limited to the REC-709 specifications. The original REC-709 specification only allows for 5 stops of dynamic range … Continue reading

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Canon C-Log on the C300 compared to S-Log.

First let me say that as yet I have not used C-Log in anger, only seen it at a couple of hands on demo events and in downloaded clips. From what I’ve seen C-Log and S-Log are two quite different … Continue reading

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More Codec and Gamma Tests.

More Gemini, Samurai, AC-Log and S-Log sample frame grabs. See download box at bottom of post. I had thought, when I first wrote this post that I had discovered a strange issue where the 444 RGB recordings from the Gemini … Continue reading

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