More about why electric field and magnetic field aren't relativistic effects of one another
Read here for the details: https://www.physicsforums.com/threads/difference-between-an-electromagnetic-field-and-a-photon.953394/post-6041796
Read here for the details: https://www.physicsforums.com/threads/difference-between-an-electromagnetic-field-and-a-photon.953394/post-6041796