why would someone who photographed people in secret, be under the same code as rapist and molestors. there is such a big difference in the crimes, but yet, it is a felony with no chance of parole..Is this true?

Sex crimes have some narrow classifications and none are designed to have much wiggle room for the offender. Federal sentences (and we are guessing this was a crime prosecuted by US Department of Justice) have no possibility for parole in any case. This has nothing to do with the crime, its the same for all federal inmates.