FYI: Note that a 1-inch sensor, while definitely larger than most consumer camcorders, isn't physically 1 inch. It's very close to 16mm. Having said that, the individual sensor sites are still quite small as compared to Super 35 or full-frame gear.
I also never liked the gain setting on the consumer cams. Tricky to understand (6 dB of gain equates to one stop). And so there is very little range here since many cams go from say 0 dB to 24 db (thus 4 stops of latitude). Also, manufacturer's typically omit what base ISO would be in play at the 0 dB value. So if that's say ISO 800, then 24 dB would now be ISO 12800; which will be lots of noise.
Adding light of course is out of the question for Disneyland dark rides, so the only other option is decrease your shutter speed. Going to 30fps with a 1/60s shutter will allow you to cut your ISO/gain by a full stop.
Note though you'll most likely be at your gear's limits. I've been there.
This fall I plan to take my EOS C70 to the park to film some of the dark rides. The Super 35 sensor's individual sites are massive. I then plan to use the 0.71x adapter along with an EF 50mm f/1.2 lens. For light-gathering capability, that will give me the equivalent of an f/0.9 lens. Using a reference photo of Pirates of the Carribean that turned out extremely well (f/1.2, 1/200s, ISO 3200), I'll be able to film at f/1.2, 24fps with a shutter angle of 180º (1/48 s shutter) and ISO 400.
Or, I may stop down the lens to f/1.8 in order to record at the native ISO of 800. Though the dynamic range of the dark rides are not high, so I think I'll go with a more cleaner image at ISO 400.
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Ricky
Camera: EOS 5D IV, EF 50mm f/1.2L, EF 135mm f/2L
Lighting: Profoto Lights & Modifiers
