So what’s the secret of the camera’s impressive low-light performance? It all starts with the 35mm full-frame Exmor™ CMOS sensor inside the SNC-VB770.
Designed and manufactured by Sony, it’s far bigger than the image sensor in ordinary network security cameras – and that larger area captures lots more light. That’s great news, because the camera’s circuitry doesn’t have to work so hard amplifying those tiny electrical signals and introducing unwanted image noise.
The 35mm full-frame Exmor™ CMOS sensor is approximately 50 times larger than the sensor in conventional Full HD cameras.
The extra-large sensor has a very high resolution of 12.2 megapixels, ensuring spectacularly detailed 4K images. What’s more, the size of each individual pixel – far larger than that of an ordinary full-frame network camera – further enhances light-gathering power and sensitivity. Sitting on top of those 12.2 million pixels is an array of miniscule on-chip lenses (OCL) that focus light accurately onto each tiny photo-sensitive area. We’ve carefully refined the design of these micro-lenses, so they grab light more effectively from a wider range of angles hitting the sensor.
We’ve also minimized the size of the gaps between adjacent on-chip lenses. Smaller gaps naturally mean more effective light-gathering power, boosting both cameras’ sensitivity while reducing noise and increasing dynamic range.
That’s not all. We’ve maximized the light-receiving area of each individual photodiode – the semiconductor device that turns incident light into a tiny electric current. And once again, less wasted light means stronger, clearer video signals with less noise. These clever light-capturing techniques add up to an extraordinarily advanced image sensor. And with an ultra-high sensitivity of ISO 409600, our SNC-VB770 can perform effectively in minimum illumination levels of less than 0.004 lx. So now there’s no need to switch off when darkness falls. You’ll miss nothing with our sensitive 4K camera – day or night.
Each photodiode features a wider light-sensitive area.