I shot my cousins engagement shoot this morning at the beach using a nikon d90 1.8 50mm fixed. I shot at f2 and like 500. Due to conflicting schedules we met out there at 8 in the morning. it turns out it was over cast and and no warm colors out. Well I shot about 1 stop over exposed and plan on bringing the exposure down 1/3 of a stop or what ever is needed. So being somewhat of a beginner and anxious to learn my question is this: My goal is to get a very well exposed image but it doesn't always turn out that way. So is it better to over expose and bring the exposure down in post or under expose and bring the exposure up in post? what are the pros and cons of both? I looked at my photos and they are over exposed about half a stop. Will post pics later so every one can get a visual.