Best telephoto lens for the sony fx3?

Here is what the site says about that.

From Sony FX3: Sony FX3: A mirrorless camera by Sony with a 12.1-megapixel full frame sensor, announced in 2021. The a7S III's sensor in a video body with a cooling fan and no viewfinder. Specs - Maker: Sony - Mount: Sony E - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 12.1 megapixels - Stabilisation: in the body - Announced: 2021 - Type: mirrorless camera Focal lengths on it Full frame is ...

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.