The Q-Tune-G is an integrated, tunable nanosecond laser for the near-infrared wavelength range, consisting of an Nd:YLF pump laser with second harmonic (526.5 nm) and an OPO. The laser system is optimized for the requirements of photoacoustic imaging and offers up to 11 mJ pulse energy at 800 nm and operates with a repetition rate of up to 100 Hz.