ESA's Arrakihs mission will have two binocular telescopes. Each of the four cameras is sensitive to a different band of wavelengths, spanning from the near-ultraviolet, through the visible spectrum, into the near-infrared.
The telescopes are developed by Spanish company Satlantis and will be based on the iSIM-170 flight-proven model. This image shows a testing model.
[Image description: A binocular telescope is mounted on a metal tabletop. The telescope consists of two black cylinders mounted horizontally next to each other on a metal base frame with some wires attached to it. The insides of the cylinders look black with a circular mirror in the centre.]