Image Science has developed two MTF analyzers for testing in the 1-3 micron region. They can be used as additions to an existing MTF measurement station, or can be delivered as a complete solution. The first unit is a real-time device typically outfitted with an InGaAs camera that covers the 0.9 to 1.7 micron range. The second unit is a scanning system covering the 1.0 to 3.2 micron range. It uses a lead sulphide detector and sampling aperture.
Additional information can be found on the datasheet above. Contact Image Science for more information on their MTF analyzers or to discuss your MTF measurement application.