The purpose of the test being to test the ability of each camera’s images to be manipulated after exposure. I have graded each output to try to get it back to neutral using Gamma and density’s chart. As you can see the Alexa responds very well where as the 7d footage fails in highlight exposure detail and it’s codec compromises it’s ability to be pulled up in the darker regions. It’s interesting and telling and goes part way to explaining the more than substantial price difference.

Alexa vs 7d latitude tests from Nick Paton ACS on Vimeo.

 

If you want a full res version of this, it helps to see the differences more clearly and you can really see the noise increase then donload the quicktime from the link below, it full 1920 * 1080 be careful to right click and download and not left click and run as its 1.5Gb

1920 * 1080 full size clip

 

 

Recent CML Tests


9 cameras RAW

RAW V Compressed F55 Alexa

Contrast handling in a real world test

Alexa 4 stops over and back


Aces Rushes One Light

Alexa - 435/5219

Alexa Epic F55 F65 single candle

Arri LUT's

Alexa BMCC C500 Epic F55

Camera Matching
Alexa BMCC C500 Epic F55 F65

Alexa-Epic-F65

Effect of noise & compression on Green Screen Alexa C500

Initial ACES tests

 

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