Where do I send my A7S II camera to get it converted to full spectrum? Alternatively, I am looking for a Sony A7S that is already converted to full spectrum. Thanks.
Kolari, Maxmax, and LifePixel all offer conversion services. I think some of them have a limited supply of pre-converted cameras, but I don't think they typically have discontunued models.
Kolari would be my recommendation, simply because I've had four cameras converted by them. Still, they all have excellent reputations. I don't think you can go wrong with any of them.