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LumaFusion 1.3.6 is now available on the App Store. This update improves editing performance and fixes a few issues.
LumaFX and LumaClip 2.3.1 are now available on the App Store. This fixes export problem for iOS 9 users


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PostPosted: Mon Jan 11, 2016 3:52 pm 
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Most video is shot at 30 frames per second (or 25 PAL). If you slow your clip down to 1/2 speed those 30 frames are used to to make 2 seconds of video instead of 1 second. Each frame in this case must be duplicated in order to create the 2 seconds, causing the step-framed effect. The slower you set the slow motion, the worse the problem appears.

The solution is to shoot at a higher frame rate:

If you shoot at 60 fps then you could slow as low as 1/2 speed without duplicating frames (at 30fps export)
If you shoot at 120 fps then you could slow as low as 1/4 speed without duplicating frames (at 30fps export)
If you shoot at 240 fps then you could slow as low as 1/8 speed without duplicating frames (at 30fps export)

In these cases you will get a super-smooth slow motion.

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Terri Morgan
LumaTouch


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