As stated in a hx750 review, I believe Sony spent effort calibrating the picture for 3D viewing, especially in darker tones. By default there is a magenta/blue cast in the darks, so I changed the settings for the Standard picture mode to attempt and reduce this effect. Also, added a bit of punch and contrast to the picture.
Please note that these are subjective values, and do not look perfect in every viewing scenario. I find these adjustments are significant improvements over the factory defaults. You may want to try them in your Custom mode and switch back and forth if the image gets a little too green for your taste.
I personally can’t stand Motion Flow and/or Cinema Flow because it’s a bit hacky and makes the image look like a soap opera. But if you enjoy the look, by all means leave it on, that’s why they put it there (however I believe these settings need to be left on while in 3D mode).
This menu can be accessed by pushing the ‘options’ button on the remote control (I believe this will only control settings for the currently set input).
Picture Mode Standard or Custom
Back light Max
Noise Reduction Auto
MPEG Noise Reduction Auto
Dot Noise Reduction Auto
Motion Flow Off
Black Corrector High
Adv. Contrast Enhancer High
Auto Light Limiter Medium
Clear White High
Live Color Off
Detail Enhance Medium
Edge Enhancer Medium
Let me know if these settings are helpful or if you have any questions.