In the Auk, the exposure for the master band is adjusted based on the field of view. The other band exposures are set to higher or lower values
depending on the efficiency of the lens and filter for that channel. Some need longer exposures (115%), some need shorter exposures In
most configurations the master band is the most sensitive, so the relative exposure for all other bands is greater than 100. Thermal bands,
when they exist, have an independent exposure mechanism, and are not affected by the value here