Hi Robin, I have similar problem. I need to convert digital number of a raster dataset into reflectance. Each band has different gains and offset that I need to multiply to make the conversion. I want to run a raster iteration in Model Builder and than take each output and convert them (by multiplying with their respective gains and offset) into reflectance using raster calculator. Like you said it's easily done with single band raster but I don't know if it can be done on multiple rasters at once. Let me know if you have found the solution. Cheers, Helder
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