Award-winning VariSpec liquid crystal tunable filters (LCTFs) from CRi tune to any wavelength in the visible or near-infrared without vibration or noise. Play-and-play USB interface provides digital control and power and easy integration for  research or OEM applications. Twenty-mm and 35-mm apertures with industry-standard C-mounts or T-mounts are available. Free software development kits are available with Windows, LabVIEW and Matlab drivers. Nuance multispectral imaging systems and Maestro in-vivo fluorescence imaging systems are also available for those who need high-performance, quantitative, intuitive turnkey solutions. Ask about our Photonics West specials!