Using the mjpeg 720 instead of the 1080P of the EP5 for grading

D7k1

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I am finding that the 720P mjpeg with its 32 mbyte rate is a better codec for grading even after upresing to 1080P than the 20 mbyte 1080P on the EP5. Anyone else find this true in video. When I use vegas Qucktime codec at full resolution to upres the 720 it is sharper than the 1080 and seems to have less artifacts.
 

D7k1

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The funny thing is I read this a long time ago on DPR when I had an EPL1. The new 1080P is "ok" for very static stuff, but the 720 for detailed scenes or movement is much better IMHO. Have you done a comparison also?
 

sgreszcz

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I've played with this, but not extensively. I mostly downscale my 1080p to 720p anyway. I stay with 1080p for the slightly higher bitrate on the ep5. I remember the mjpeg being 'fuzzier' than the h264 compression, but I should really try it again to avoid the macroblocking that I get with scenes with more detail or movement.

Damn, I just wish that olympus would fix their codec. They deliver a great image with excellent colour and wonderful lenses. I think that I will wait one more round of camera bodies (em5 ii) or jump to Sony or Panasonic or Samsung and deal with lens IS or external stabilisation.
 

D7k1

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The ACHD 1080P is 20mbites vs 32mbites mjpeg 720 as reported by vegas, that is what gives the 720P an advantage. I will post an example when I have time but it might be a week or two.
 

D7k1

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Also its very easy to verify, just take a scene that has lots of detail. Then, depending on what your camera settings are, start adding some color corrections and sharping to the 720P, up res it in a good NLE, and then sharpen & color correct the 1080P stuff out of the camera - see which looks better to you. For me the 720P is not only better with scenes with lots of detail but it takes grading so much better.
 

sgreszcz

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I took a few clips today at 1080p and 720p fine h264 .mov as well as 720p mjpeg .avi. Will compare and post soon...
 

D7k1

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I will be very interested to see your results. Also I found that the mjpeg needs to be sharpened to get the best results, but because it has a lot more data it takes the sharpening (I use very little but never more than say 40%) for best results.
 
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