You asked

Is the tokina f rin 100mm f 2 8 fe macro good on aps c?

Here is what the site says about that.

From Tokina FíRIN 100mm f/2.8 FE Macro: Tokina FíRIN 100mm f/2.8 FE Macro: A macro lens by Tokina for Full frame cameras, 100mm f/2.8. An autofocus 1:1 macro for Sony full frame. Specs - Maker: Tokina - Focal length: 100mm (macro) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 100mm. - On APS-C (Sony E): like 150mm on full ...

From Sensor sizes: What it costs you: - Size, weight and price, especially of the lenses. A full-frame telephoto is much larger than its APS-C or Micro Four Thirds equivalent. - Less depth of field when you want more of it, for macro or landscape.

Quoted from this site's pages.

From these pages