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CBR bitrate Test - Magic Lantern

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Uploaded by on Aug 23, 2011

This is a comparison of CBR bitrate settings on Magic Lantern.

If you would like a copy of the files used in this test you can get them here: http://www.mediafire.com/?0j19zuyj9l77zv7

Get Magic Lantern for your camera today! http://magiclantern.wikia.com

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Uploader Comments (mattsdni)

  • Is there any references on here you can share that would better explain the difference between CBR bitrate and Q-Scale Bitrate?

  • @yungsonny2700 Q scale is a value in the h.264 codec that controls the bitrate indirectly. With Q scale, the more detail in the shot, the higher the bitrate. The CBR mode attempts to change the Q scale value while shooting to maintain the same bitrate, even if the scene has more or less detail. Sometimes, if the scene has little detail, regardless of what CBR setting you choose it will "max out" at -16. This can make CBR mode unreliable for testing purposes.

  • Thank you for a good cbr video :)

  • @AYHASfilms anytime. If you like these kind of tests and tutorials consider subscribing!

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All Comments (8)

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  • Do you recommend having a static CBR rate (example 1.0x , 1.4x) or using a static value on the Qscale-VBR (example ,-11 ,-12, etc) can't decide which settings to fiddle with.. And what benefit it has over one another. Like to know what your opinion are, thanks ahead of time.Great video by the way.

  • ever tried 3.0x?

  • very helpful, should have more views

  • What iso? 160?

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