Held in the filter wheel of the A8580 and A6780 cameras, this glass surface spectral filter makes a glass surface opaque so the camera reads the glass temperature instead of seeing through it. It swaps in alongside the other factory-installed filters in the wheel. It suits laboratory and process imaging that must be separated by wavelength.

Held in the filter wheel of the A8580 and A6780 cameras, this glass surface spectral filter makes a glass surface opaque so the camera reads the glass temperature instead of seeing through it. It swaps in alongside the other factory-installed filters in the wheel. It suits laboratory and process imaging that must be separated by wavelength.