>>3393599It's more or less right, but there are some caveat.
Your hidden assumption is that aperture is remaining constant, which isn't necessarily the case unless your lens is broken, you're using a smartphone, or you absolutely want to use a particular aperture (which might not be the case if you still have these kind of doubts).
>film grainIf you're using a digital camera what you get is noise, which isn't exactly the same thing as film grain. If you're using film then yes, you'll have more noticeable grain, however if you're shooting film you just can't change ISO on the fly as with digital since it's a physical property of the film itself, so until you expend the roll and reload another one -or use another camera with another roll with different ISO- you won't be able to manipulate that setting, and you'll have to adjust exposure juggling with shutter speed and aperture. Aperture however will have an impact on the depth of field of your picture, but that's another topic.
>Low ISO and slow shutter speeds are ideal assuming a static targett and steady handsYes, but remember that there's a point (as a rule of thumb when the reciprocal of the shutter speed is lower than the focal lenght of your lens) in which you shouldn't shoot free handed and have to rely on a tripod to avoid camera shake, unless your digital camera has some sort of stabilization.
