At 24 frames per second 2 minutes 30 seconds. At 24 frames per second 2 minutes 30 seconds. The fastest is three days. No, the only similarity is that they are 8mm wide. The type of result depends on the film you put in the camera, not the camera itself.
Cameras can shoot either.
Yes, 40ASA, 50ASA and 200ASA reversal. This means that the image on the film looks as it is in real life. Reds are red, the sky is blue etc. The opposite to reversal is a negative. Generally no, as the cartridges are notched for different speeds and the cameras can recognise this.