how to avoid noise and get crisp color??

[vmorris7408]

I have been a studio photographer for a while and recently took to outdoor photos and have come to realize how much harder outdoor photography is lol. My question is, when shooting outdoors how do I avoid noise in my photos? Because although I set my ISO at 100-200, I have still been getting a good amount of noise to my photos. Also, what would your suggestion be to get crisp color to my portraits? My backgrounds seem bright and saturated, but my subjects are dull even with diffused flash . How do I get color that pops? Studio work is soo much easier LOL. Thanks! -Victoria

[kencaleno]

If you get the exposure right-noise doesn't become a problem-and photograph crisp colors, if that's what you want.

[dcclark]

Could you post an example, including exposure data? I'd like to see what you mean before I comment.