E-M1 Video Specs - Everyone loses

Started Sep 3, 2013 | Discussions thread
mpgxsvcd Veteran Member • Posts: 8,094
Re: E-M1 Video Specs - Everyone loses

honeyiscool wrote:

I think these numbers are hogwash. E-PM2 has higher bitrates than every one of those settings except the 24 Mbps.

Bit rate is not everything. There is a whole lot more to compression than just bit rate. All the GH2 hackers will lead you to believe that all I frame is the only choice you should ever consider. However, all I frame is rarely better unless you are using ridiculous bit rates(ie: 180+ mb/sec) that most memory cards can’t handle.

The GH3 achieves the best compression by using an entirely new compression scheme. It stills conforms to the H.264 specs but it is a much higher level and more efficient scheme. If they use a very efficient compression scheme then 24 mb/sec might be ok. However, even with a super-efficient scheme I still think the 50 mb/sec of the GH3 will be better.

After 50 mb/sec with a very efficient scheme the difference is not as significant.

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Panasonic LX100 Panasonic Lumix DMC-GF1 Olympus PEN E-PM2 Panasonic Lumix DMC-GH3 Panasonic Lumix DMC-GH4 +5 more
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