The DS-Qi1 is an ultra high-quality monochrome, cooled digital microscope camera geared for high-speed, high-sensitivity applications. By combining low noise electronics and a high-quantum efficiency detector, the DS-Qi1 can capture a wide dynamic range of intensities while maintaining quantitative linearity. Added features such as a fast analog-to-digital converter (ADC), very low read noise, and programmable gain control make the DS-Qi1 an ideal detector for fluorescence imaging applications.