No, there is no slider on PC to do this. No, I don't let the FOV-slider count. It really does not help and does not do enough.
Examples of why we need camera options: https://imgur.com/a/s2H9JEM
There are many more warframe + armor-customization combos like this. Just... give us options, please.
Used warframe in this example: Chroma Prime + Dynasty armor set.