Weighing in on NTSC video-to-24p conversion

24p deinterlacing after the fact - from regular NTSC video I find to be inherently flawed. I love the idea of it, and it comes very close to being acceptable. But the more I fuss with it, the more I encounter its "silent movie/image dropping" effect.
Every fifth field is parted with in one way or another, though there are various choices in choosing fields and blending deinterlace protocols and motion blur. However, current technology offers wonderful options for controlling the image in terms of contrast, gamma and diffusion.
True 24 frame per second film and HD divide each passing second by 24 and convert to interlaced video via the tried and true 3:2 pulldown process . On the other hand, the "24p from NTSC" conversion process forces dropped fields leading to a subtle staggered motion. In the end, its a choice between choppiness and excessive motion blur.
The eye is much more accepting of the core math of the 3/2 pulldown. When you think that you are viewing 3 fields of a still image followed by 2, followed by 3, (etc) you would think the eye would react against it, but not so.
Of course, there's 30p conversion from NTSC. I think this is much more useful.
I have deliberately avoided mentioning any product by name here. After month's of toying with the technology, I've arrived at my theory on what the limitations seem to be in practice, and am submitting my opinions for what they are worth.
Chris

Specifically, Nattress Film Efx. I find the 24p frame rate option to be an issue for the reasons I described. I've been seeing a lot of stroby 24p images from various sources lately and it finally dawned on me that there's just no way to make NTSC to 24p completely smooth like film or HD. I am very happy with the Nattress program in all other respects. It is excellent and a great value. In fact, from what I've seen of Graham's approach to technology, we are quite lucky to have him. Check out his Cool Blur and G Beauty filters sometime. They are awesome.
Chris

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