About the IMX294/IMX492 Sensor
The Sony Starvis IMX294 Exmor R is a 21.63 mm diagonal (Type 4/3), 11.6 megapixel, back-illuminated color CMOS sensor. Sony has commercialized the IMX294 Type 4/3 back-illuminated CMOS image sensor for low light applications. The IMX294CJK is the first in-house image sensor to adopt the Type 4/3 format and realize output of the number of pixels needed for 4K video at 120 frame/s (in ADC 10-bit output mode). In addition, use of a large-size pixel achieves SNR1s of 0.14 lx, and use of a Quad Bayer pixel structure realizes a High Dynamic Range function with no time difference, enabling video imaging with a wide dynamic range.
The IMX492 is the monochrome version of IMX294. IMX492 is announced with 47mega pixel, 2.315um pixel size. The Origional QHY294C only output the 11.6mega pixel. The four Quad Pixel is combined into one pixel and output. In this case, the pixel size is 4.63um. In Oct of 2020, QHYCCD released the QHY294PRO. The QHY294PRO add the "unlock" 47mega pixel output and the Quad Pixel can be output seperately, the pixel size is 2.315um, for both monochrome (QHY294M-PRO) and color (QHY294C-PRO).
By select the "ReadMode" options, this two mode can be selected. The standard 11.6mega pixel mode output 14bit image, the "unlock" 12bit mode ouput 12bit image. The standard mode can be regards as 1*1 binning mode and the "unlock" mode can be regards as 2*2binning mode.
STARVIS is a trademark of Sony Corporation. The STARVIS is back-illuminated pixel technology used in CMOS image sensors for low light applications and realizes high picture quality in the visible-light and near infrared light regions.
Exmor R is a Sony's CMOS image sensor with significantly enhanced imaging characteristics including sensitivity and low noise by changing fundamental structure of Exmor™ pixel adopted column parallel A/D converter to back-illuminated type.
QHY294C Test Pictures by User