EVA1 Incoming – And What is Pansonic Dual Native ISO?
Finally have approval to put an order for the Panasonic EVA1 in the coming weeks! The EVA1 features Panasonic Dual Native ISO so I thought what a perfect opportunity to figure out exactly what that is.
Typically cinema cameras will allow users to adjust the gain applied to the signal from the sensor, called the ISO. This term was taken from film and definition adapted to fit once digital sensors took hold in the market. Just like an audio clip with levels recorded far too low, amplifying the signal also amplifies the noise. So when shooting digital a compromise is always made when one wants to increase low light sensitivity. ISO is an artificial way to shoot low light.
The majority of cameras have one native gain (ISO), or where the signal path of the sensor is not amplified at all, where the baseline and least noisy image will result. Panasonic introduced Dual Native ISO with the Varicam 35 and the idea is so simple you might wonder why it hasn’t been tried before. (The idea, I’m no engineer and I’m sure the execuation was the difficult part).
Panasonic Dual ISO works because there are actually two analog signal paths built into the camera, one for 800 ISO and one for 2500 ISO. This means you will be able to shoot in low light with great noise levels since both ISO levels are camera native. This older event from the Varicam 35 helps to explain with a live demo: