Raman Notch Filter Chamber
Model NFC-446-040: an efficient and easy method of using cut-off or notch filters with spectrometers. It collects the output of fibers and collimates the beam, which passes through the filter. A second lens focuses the beam on the entrance slit of the spectrometer. It accepts up to 38.1-mm-diameter filters. A micrometer controls the filter angle from 0° to 10° for precise filter tuning.

Nikon® Camera Lens Adapter
Model CM-446-050: designed specifically for remote light collection and imaging applications. It includes a standard F-mount, which permits a Nikon lens to be mounted on the entrance slit of any Acton SpectraPro® spectrometer. The lens focus is at the slit, permitting remote light collection or direct source imaging through the system.

Bilateral Slit Assembly
Model SP-716: a unique, kinematically mountable bilateral slit assembly that includes a micrometer for continuously variable slit-width settings from 10 µm to 3 mm. The slit height is controlled by a baffle plate, allowing standard 4-mm or 14-mm heights. For imaging applications that require a larger area than allowed by the entrance slit of the spectrograph, a customized indexable slit is available.

Motorized Slit Assembly
Model 718: a self-calibrating, 10-µm to 3-mm adjustable bilateral slit. Stepping-motor-controlled adjustments are made in 1-µm increments over the full range. Full control of the slit, including automated bandpass setting, is integrated into SpectraSense™ software. Once the slit is set, it maintains its position even with the power turned off. The motorized slit is available for all Acton SpectraPro spectrometers except the SpectraPro 150.

Source-Compensation Accessory
Model SCA-440-UV: mounts on the exit slit of a monochromator that is used for illumination. It compensates for source fluctuations at a target wavelength, unlike most compensators that look at the total output of a lamp. This selectivity ensures the utmost sensitivity to source variations at any wavelength.