This set is designed to take advantage of the superior resolution, sensitivity, and image fidelity of today’s state-of-the-art laser-based microscopes. The filter spectra are optimized to capture the maximum fluorescence from Cy5 and other similar fluorophores while offering superb blocking of popular 635 nm (solid-state laser diode), 633 nm (HeNe gas) or 647 nm (Kr-ion gas) lasers. The dichroic offers excellent flatness for minimal focus shift and aberrations of the laser beam spot at the sample.Our improved version is certified to deliver dichroic flatness