Hey Jay, thsnks so much for your response. Shooting at iso 1600 in a scene where its intended for low light renders some disgusting results in regards to noise, FPN, you name it. Just yesterday I shot 1600 iso outdoors in the snow, and boy did that help me to obtain some extra lattitude in highlights. The only reason i could see myself shooting at such an high iso for a night scene is if I intentionally want the look to have built in noise aesthetically. For this low light scene I dont need more lattitude in the highlights especially in controlled environments, and if i need more exposure to see into the shadows i can simply add more light instead. Maybe I'm wrong but choosing an ISO setting is much more than using it to crank up brightness. My feeling is mutual with the idea of fast lenses only being used for low light shooting, once again i feel t stops are associted so much to the feeling the story demands. This scene im shooting indoor at night at a T8.
Its obvious in a low lit environment if i crank up the iso to 1600 it would appear I'm seeing more shadows the problems arise when you pull the shadows down in post. I know this concept is hard for most to grasp but, low light shooting usually renders best to use an iso that gives more in the underexposure but then again theres solid reasons to shoot higher as well. Every iso setting is the start of the canvas