DS-Ri2 and DS-Qi2, microscopy digital cameras equipped with a Nikon digital SLR camera FX-format CMOS sensor optimized for microscopy
Nikon Metrology is pleased to announce the release of digital cameras for microscopes DS-Ri2 and DS-Qi2. These are the first Nikon digital cameras for microscopes in the Digital Sight series equipped with a Nikon FX-format CMOS sensor. They offer 16.25-megapixel high-definition images. The DS-Ri2 provides superior color reproduction and fast frame rates. The monochrome model DS-Qi2 enables high-sensitivity, low-noise images.
Features of DS-Ri2
One-shot capture of high-definition color images
DS-Ri2 offers 16.25 megapixels. The newly equipped CMOS sensor for Nikon FX-format digital SLR cameras (36.0 x 23.9 mm image size) enables one-shot capture of high-definition images. It also allows faster imaging than pixel shift imaging comprising multiple-shot images, and reduces vibration during image capture.
Superior color reproduction, high sensitivity and low-noise imaging
The newly developed image processing engine is ideal for brightfield imaging of pathological samples, which require high-color reproducibility. The large pixel size (7.3 um pixel pitch) allows weak light to be captured by each pixel and the low-noise circuit design is optimized for microscope imaging. These enable sensitivity control from ISO200 to ISO12800, and high-sensitivity fluorescence imaging with reduced noise.
High-speed live-image display
Thanks to the USB3.0 computer connection and CMOS sensor, which provides high-speed data readout, the frame rate has been significantly improved to 45 fps (1636 x 1088 pixels), from 19 fps (1280 x 1024 pixels) with the conventional model. This enables fast live-image display and easy observation point selection and focusing.
Features of DS-Qi2
High sensitivity and low noise
The newly developed 16.25-megapixel monochrome CMOS sensor for the monochrome digital camera for microscopes offers 36.0 x 23.9 mm image size. The S/N ratio is five times better than that of conventional models, with quantum efficiency*1 up to 77% and 2.2-electron readout noise. In addition, Peltier cooling (electronic cooling) reduces dark-current noise*2 and produces clear images with reduced noise even with dark fluorescent specimens.
- *1Conversion efficiency from light to electrical signals.
- *2Noise caused by heat from the sensor during lengthy exposures.
Superior quantitative performance
Low ± 1% linearity error of output power to input light intensity enables correct measurement of changes in brightness of specimens.
High-speed live-image display
Thanks to the USB3.0 computer connection and CMOS sensor, which provides high-speed data readout, the frame rate has been significantly improved to 45 fps (1636 x 1088 pixels), from 19 fps (1280 x 1024 pixels) with conventional models. This enables fast live-image display and easy observation point selection and focusing.
|Image sensor||Nikon FX-format Color CMOS sensor Size: 36.0 x 23.9mm||Nikon FX-format Monochrome CMOS sensor Size: 36.0 x 23.9mm|
|Effective pixels||16.25 megapixels|
|Live-display mode and image pixels||With F-mount adapter 2.5x 6 fps (4908 x 3264 pixels), 45 fps (1636 x 1088 pixels) With F-mount adapter (direct) 19 fps (1608 x 1608 pixels), 45 fps (536 x 536 pixels)|
|Image format||BMP, JPEG, TIFF, etc., selectable in NIS-Elements|
|Lens mount*||Nikon F-mount|
|Dimensions and weight||134 x 105 x 153 mm, approx.1.2 kg|
- *Optional mount adapters are required for mounting cameras on microscopes.