Today I discovered: The focus buff is a yellow model of a void-structure, which can be found behind the operator at the ship! : Warframe
Warframe - Fast Focus Farm (Rhino) - YouTube
Focus Guide : Warframe
Focus | WARFRAME Wiki | Fandom
Warframe - Focus and Synthesis Guide
Warframe: Top 15 Focus Ways You Need To Use | TheGamer
Warframe Focus a Complete 2020 Guide (Farming Focus, Pool, Energy, Schools, etc) - ProGametalk
The Failures of Focus - Tenno Clock News
Stacking affinity buffs leads to insane single-orb Focus gains under perfect conditions. I had to reset a few times for my Smeeta's Charm to proc. : Warframe
Focus 1.0 | WARFRAME Wiki | Fandom
Focus "3.0": Revamp to better incentivize Operator + Warframe gameplay - General - Warframe Forums
Warframe Guide - Focus Basics and Best Practices - ISK Mogul Adventures
Warframe Focus a Complete 2020 Guide (Farming Focus, Pool, Energy, Schools, etc) - ProGametalk
Focus schools for each frame? - General Discussion - Warframe Forums
TCN] The Failures of Focus - General - Warframe Forums