I recently added the Sony 100-400 GM telephoto lens to my camera's arsenal and while it's been raining most of the time, I've been pretty diligent about getting out and shooting. Tonight I wanted to leverage the falling rain and what I had to my disposal at my office building. Outside there are these tungsten lights that illuminate the parking lot when it gets dark, so I figured I could test the low light capabilities of this beast of a lens. Below is a handful of shots at various shutter speeds and ISO. Something neat I'd like to point out is that in the longer shutter speeds, you can see the alternating current of the light (flickering).

ISO 2500 | 400mm | f/5.6 | 1/125s

ISO 1250 | 400mm | f/5.6 | 1/60s

ISO 1250 | 224mm | f/5.6 | 1/60s

ISO 3200 | 400mm | f/5.6 | 1/20s - The flickering of the street light is very prevalent in this shot.