Thanks!
No, city lights did everything. That was really dark when I shot this footage, but city lights produced a lot of ambient light, so I could shoot with iso 100. It was not really necessary to use 1.4 aperture. I could use less shutter speed and get 2/3 stop or could increase iso 2-3 stops or even more. It was test with iso 100, but there’s no problem to use high iso level on 5d mk3. Sometimes I even shoot with iso 2500-3200. The main idea when you shoot with the high iso level - don’t touch exposure (especially shadows), use rec709 curve (not srgb) in post and you’ll get a good result without noise.
Wide open aperture isn’t so important. But I was surprised to see how sharp image is with 1.4. When I take photos I don’t like to use less 2.0 aperture because of depth of field. But in video mode 1.4 works really good. It gives a sharp crisp image. This lens is the best lens I’ve ever had for video. Any lens is good for close-range and mid-range shots, but only this lens is the best for long-range shots, it still has perfect contrast, colors and details even with wide open aperture.
