Sony FS-100: Noise in Black

[martin_s]

Hello,
with my NEX-FS100 I sometimes get some noise in the black areas.
I attached a still of the scene, where the black is noisy (black on the left upper part, the bigger black area)
I use a cinestyle picture profile. ISO was 500.
Is it a codec issue of the AVCHD or can I optimize it with some parameters in the picture style.
Thanks for any hints.

Regards
Martin

[Jott]

No unusual noise on my screen here. May depend on calibration. If you want to get rid of any noise, try Neat Video (noise removal plug in).

[klusterdegenerierung]

Sorry but there are really no colornoise in the black, not one, only abit isograin, but veryless.
For me an absolute perfect capture.

[WoWu]

@Martin
Yes, noise is present in the black regains.
Does this suppose to be black, since you`re still a little off black?
Is ISO 500 the sweet spot in terms to noise for the camera ?
Try to shoot in sweet.. this may be a little higher ISO.