TIME CODE DISPLAY

Disclosed is apparatus and a method for displaying a time code. The apparatus comprises: a plurality of reflectors (502), each reflector (502) being configured to reflect an incident signal (907, 908), each reflector (502) being switchable between a first state and a second state; and a controller (108) configured to receive time code information and control the reflectors (502) using the received time code information. In its first state, each reflector (502) has a first orientation such that an incident signal (907, 908) is reflected in a first direction. In its second state, each reflector (502) has a second orientation such that an incident signal (907, 908) is reflected in a second direction, the second orientation being different to the first orientation such that the second direction is different to the first direction. The displayed time code is used as a time stamp for measuring the image processing latency of an imaging system, particularly an hyperspectral aerial imaging system maging in different wavelength bands.