Shooting at ISO 100 is okay, if the light is nice and bright (or if not, you use a tripod) and if your subject is still or fairly still. ISO 100 does have the least amount of grain in a digital camera. However, the digital cameras coming out now, es…
I shoot at any ISO which will give me the best and most appropriate (for me) shutter speed that I want. For instance in a fairly dark situation I would use quite a high ISO, especially if I wasn't using a tripod but if I was outdoors in very bright…
Some of my favourite photographers are Minor White, Eugene Smith, Edward Weston and a photographer I lucked onto not that long ago Renato Dagostin.
It's really hard to choose a few!