Comparisons betwen Hinode/EIS and SDO/AIA observations of the filament material. Panels E1–E3 show three consecutive EIS exposures of He II 256.32 Å line. Panels A1–A3 show nearest-in-time AIA 304 Å images with the same y-range as panels E1–E3. The location of the EIS slit on the AIA images is indicated with two short vertical blue lines at the panel top and bottom. A logarithmic intensity scaling is used for all images. The horizontal dotted lines are used to help compare different panels. Features marked with circles and arrows are discussed in Sect. 4.2.2.