Princeton Instruments/Acton has expanded its Pixis line of CCD cameras with the introduction of the Pixis: 2048 series front- and back-illuminated models. They are based on e2v technologies’ CCD 42-40 2048 × 2048-pixel sensors with a 26.7 × 26.7-mm imaging area. The cameras feature thermoelectric Peltier cooling to better than –70 °C. They include dual 100-kHz/2-MHz digitizers, read noise of 3e- rms at 100 kHz, all-metal hermitic seals, a USB 2.0 interface and single optical window design for high optical throughput. They also offer flexible binning, region-of-interest capabilities and WinView software. The cameras eliminate the internal fan, using a CoolCube liquid circulator to dissipate heat. They are supplied with standard interface libraries for Windows 2000/SP and Linux operating systems.