Reflectance by Phantom4 Multispectral

Dear Fernanda,

I know about reflectance maps either absolute and relative reflectance. But, I have a question here: I have in hands parrot calibration target (picture) that I was using with Parrot Sequoia. But now, I am using Phantom 4 Pro Multispectral. So, this calibration target can only be used with Parrot Sequoia or Can I use with P4 Multi. Detail is, P4 Multi has blue band neither avaiable in Sequoia. If not, Will I need to calibrartion this target in lad to get correct albedo values?
Thanks