odellvic wrote:
Thanks. I was on aperture only but I see that my camera (Nikon 5100) was set to "vivid" and perhaps it should be at "standard" or "neutral". Thanks for the help.
So apparently sports mode took over all parameters and over-rode the "vivid" setting and went back to normal.
The goal of the camera artificial intelligence in using a higher ISO in sports mode is so the shutter speed can increase to stop action.
Personally, I use ISO 200 outdoors virtually all the time anyway, even in full daylight, so I can counteract people's random small movements (humans never really stand still - we always have a subtle "dance" that our bodies do to stay balanced and upright - plus nervous fidgeting around), tree leaves blowing slightly and blurring, and even grass moving.
This higher ISO typically allows my shutter speed to move up from the 1/30 to 1/250 range to the 1/125 to 1/750 range unless I use fill flash which demands 1/250 sync anyway. Higher non-flash shutter speed caused by boosted ISO is also beneficial for eliminating closed eyes in group shots too. I can't tell you when I last shot a group picture with one person's eyes closed.
If I was trying for something like a milky flowing river or waterfall effect I would slow the ISO back down, of course, so shutter speed could come back down too. Or when shooting action, I would use ISO 400 or maybe even ISO 800, 1600, or 3200 because I have those options on a Sony with no objectionable gain noise.
Because my camera has extremely low ISO boost noise (Sony Alpha 55) I also typically use ISO 400 and frequently ISO 800 indoors in non-action situations (I caught that helpful hint by accident in a Gary Fong diffuser video clip on YouTube) - even when using flash. This allows a smaller aperture whenever desired and/or higher shutter when not using flash.
Even when using flash, higher ISO shots require less flash power to accomplish the same exposure when using TTL metering. That extends your battery life, extends your perceived flash range for larger groups, and will reduce fill flash negative effects on a smaller or close subject.
As for vivid color, I personally prefer to capture overly vivid color and reduce saturation in post editing to achieve a more normal level, than to start with normal level and have the desire to pump it up slightly. That's just me. I also prefer to have too much of everything in audio and use an equalizer to reduce certain frequencies rather than boost things to compensate.