If I can extract an excellent image from video with the Canon 5D Mark 4, then why do I have to be confined by a 7 frames per second situation. Can I not take a video of BIF then grab it from video, or is something lost in translation?
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Given the choice between excellent equipment and excellent skill, I'll go for the skill every time.
In 4k, you can do 30 FPS 8.8 MP stills. I take the video and grab it in post and export it as .tiff and then work on it.
However, if you're gonna need to do serious cropping and things like that, might want to use the 7 FPS and 30 megapixels.
If you're asking WHY it's like this, with video it's using an electronic shutter that goes off 30 times per second, it would take a lot of processor power for it to do that and give you raw files, it would take more than we currently have in technology to give you 30 megapixel raw files.
When using the mirror, you aren't using an electronic shutter.
The reason we don't use electronic shutters all the time, especially in action photography, is because it has a lot of down sides, such as rolling shutter. That is currently being worked on and improved however it's not fully there yet.
At some point in the future we will be recording 30 megapixel video in which you'll be able to extract raw files from at probably 240 frames per second. But were not close to that yet. It'll happen though, by the time that happens electronic shutter will have no issues and will be better than the mechanical shutter.
