Originally Posted by
DanK
That's probably at least part of your answer. At least on Canons, the standard picture style is not close to neutral because it is designed for people who want to use jpegs SOOC. To start, you need to pick the style that does the LEAST to the image--no contrast boost, no saturation boost, etc. I don't know what that might be for your camera. Canon's have "neutral" and "faithful" options and allow you to create your own as well.
If you google, you will find lots of postings about this, but I don't know whether you will find any for the alpha.