So to the testing I did. Courtesy of my helpful assistants, the four nameless fish, and their humble abode, the tank. I wanted to shoot under three different lighting conditions, the tank light, the room light and a torch. This would simulate a couple of different looks, and different distributions of light, much like you'd do in different shooting scenarios.
I shot with the GH2, 1/50 with Canon FD 1.4 varying from f1.4 to f22.
I'm in the process of uploading the joined MTS files (using the excellent tsMuxer - no re-encode) to my Vimeo Plus account. It's 1.5GB, and I have 5Mb upload, so it'll take a bit (currently showing 40 minutes). For now, here are my own subjective test results. I will post a link/embed the video once the upload is completed. The video is in the order of the testing as listed below. There's no overlay text as I didn't want to re-encode. It's obvious when the scene changes though, just remember the order.
Test results:
Tank Light - Fluorescent (AC)
- ISO 800
○ No visible band through f2-f22
- ISO 1600
○ Faint band by about f5.6 (area about -3ev)
○ More visible by f8 (area > -3ev)
○ Disappears in complete darkness (about f14-16)
- ISO 3200
○ Faint band by about f7.1 (about -3ev)
○ More visible by f9 (> -3ev)
○ Disappears in complete darkness (about f20)
Room Light - Energy Saving Bulb (AC)
- ISO 800
○ No visible band f1.4-f22
- ISO 1600
○ No visible band f1.4-f22 (maybe slightest of faintest , but could be illusion due to looking TOO hard)
- ISO 3200
○ Very faint band at about f6.3 (-3ev)
○ Visible band at about f8 (> -3ev)
○ Darkness from f11 and no band
Torch Light - DC
- ISO 800
○ No visible band f1.4-f22
- ISO 1600
○ No visible band f1.4-f22 (maybe slightest of faintest , but could be illusion due to looking TOO hard)
- ISO3200
○ Faint, almost imaginary (is it actually there or not) band in the underexposed edges by about f8, have to move my head around up and down the LCD monitor. Thought it was imaginary at first, but I think there's something there.
Viewed on plasma, actually even harder to discern the band, but still present. Visible becomes faint, faint becomes that imaginary feeling.