Since lens with high focal distance are generally not that fast and they need high shutter to freeze moving animals, how do they get light without addind too much gain an grain ?
Since lens with high focal distance are generally not that fast and they need high shutter to freeze moving animals, how do they get light without addind too much gain an grain ?
Practice and money.
Better body with full frame has less noise, but costs
Better lenses with lower Fstops, but costs
Learning the lighting situations.
Editing in post.