The QuantaMax fluorescence microscopy filter sets have been announced by Omega Optical Inc. Available in blue, green, yellow, red and far red, the filters feature deep blocking to the limits of CCD detection at 1150 nm on both the excitation and emission filters. They use state-of-the-art “energetic process” coatings that are spectrally stable, mechanically robust and insensitive to moisture. The filters are dense and hygrophobic, and their multisubstrate air-spaced assembly protects them from mechanical abrasion and harsh environments. They use color space designs to capture maximum color energy. The company says that they deliver a high signal-to-noise ratio, high throughput, low noise and zero pixel shift.