Samuel H
Major Contributor
I think the a7s is a really great camera, the best for its price given what I care about and what I don't care about. But selling an FS700 to get the a7s seems a bit of an overreaction to me. I don't know the FS700 well enough, it's out of my budget, but it looks like a better tool in broad terms.
Regarding image quality, you can use this comparison to judge sharpness and DR:
https://vimeo.com/98791150
Then again, one VERY important point is: what lenses do you own? The APS-C mode in the a7s is not as good as the FF mode (though it does have faster RS).
And also, it is not a big problem to me because I'm yet to see any problematic examples in real life, but: with the a7s you are stuck with 8-bit, the FS700 at least allows you the option to upgrade to someching (much) better in the future. Although given how fast Sony brings new cameras out, there may be an a7s replacement with internal 10-bit by the time you are ready to upgrade to FS700 RAW...
Regarding image quality, you can use this comparison to judge sharpness and DR:
https://vimeo.com/98791150
Then again, one VERY important point is: what lenses do you own? The APS-C mode in the a7s is not as good as the FF mode (though it does have faster RS).
And also, it is not a big problem to me because I'm yet to see any problematic examples in real life, but: with the a7s you are stuck with 8-bit, the FS700 at least allows you the option to upgrade to someching (much) better in the future. Although given how fast Sony brings new cameras out, there may be an a7s replacement with internal 10-bit by the time you are ready to upgrade to FS700 RAW...