Semrock, Inc. (Rochester, NY) recently released the first two products in its soon-to-be expanded line of PulseLine(TM) femtosecond laser optics. These 45° turning mirrors are IBS-coated for maximum durability and feature high reflectivity (R > 99%), low dispersion and a high laser damage threshold over a broad wavelength range. The FS01-MTiS45S-25.4 and FS01-MTiS45P-25.4 turning mirrors reflect light at a 45 degree angle of incidence and are available immediately in a standard 1 inch (25.4 mm) size. They are ideal for applications where femtosecond laser beams need to be guided from the output of the laser head to the sample, and are especially useful in multiphoton microscopy and femtosecond laser spectroscopy. These are ideal for covering the full Ti:sapphire laser tuning range of 680-1080 nm.