Does anyone have experience shooting at night with the EVolt 500, using the 14-56mm lens at 14mm and f/2.8 . . . and ISO of 800? How grainy might I expect photos to be at a 8-15sec exposure? I want to keep my exposure as low as possible, but do not want to forego image quality. I also plan on having the "noise reduction" feature "on" so that will help in reducing unwanted blips.

When people talk about "grainy" photos using higher ISO, is that the same thing as noise or something else?

I have never used the manual shooting aspects of this camera and am just learning how to get up the camera before going out to practice. Unfortunately, the night skies have been very cloudy here in Central Iowa so I haven't had the opportunity to start experimenting.

Thanks in advance for the guidance and help!