KALEO MTF - MTF & WFE Optical Testing Station The Kaleo MTF instrument is ideal for measuring sets of lenses at the design, prototyping, or production phase. It delivers the most complete lens characterization: on & off-axis MTF, radiometry, and wavefront ... Inquire Price Sold by: PHASICS Ships from: France Specifications Measurement Capabilities: Encircled Energy, Coma, Distortion, Distortion, Transmission, MTF, Chief Ray Angle, Field Curvature, Effective Focal Length, Astigmatism, Through-Focus MTF