Photographers use my photos to do other things.

If it is used for profit without your explicit permission, it is of course an infringement of your portrait right. If it is only used for academic or non-profit, then this is debatable, but it should also be approved by you, and your signature right has always been enjoyed. Just because you didn't spend money on negatives doesn't mean he can use your photos for other purposes, because there is no clear agreement to give you photos for free, so it can be regarded as a gift, so even if you take the negatives for free. They can't infringe your legal rights (portrait rights) either.