Grabbing all the has_many relations of a specific collection

I've got:

class User < ActiveRecord::Base
  has_many :photos
end

class Photo < ActiveRecord::Base
  belongs_to :user
end

Each user has a "shadowbanned" attribute (t/f). I'd like to be able to grab all the photos where the users aren't shadowbanned.

How would you recommend I set up either the scope or the association to have Rails do the most work possible?

Guess what I'm asking is, is there anything cleaner than this:

    valid_photos = Photo.where.not(user_id: User.where(shadowbanned: true).pluck(:id))