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Deep Focus is a Charm in Hollow Knight. It doubles the Masks healed when using Focus but decreases Focus speed by 65%.[Note 1]

Usefulness

With Deep Focus, it takes 65% longer to Focus, not including the startup time (0.25 seconds). Startup time is not affected by Deep Focus.

Its restrictive cost and slow Focus time make it hard to use in boss battles. It is better used in areas where there is lots of time to rest, such as while tackling difficult platforming challenges, where it shines in combination with Grubsong and Hiveblood.

How to Acquire

Found in Crystal Peak in a hidden cave made entirely of crystals.

Below the area where Cornifer can be found, look for a Husk Miner mining a wall. Break the wall to reveal the secret area. Requires Crystal Heart.

Charm Synergies

Spore Shroom.png

Spore Shroom
Increases the spore cloud radius by 35%.

Charm Combo Tips

Stalwart Shell.png

Stalwart Shell
Useful to provide a window to Focus.
Quick Focus.png

Quick Focus
Despite costing a prohibitive 7 Notches combined, Quick Focus partially cancels the Focus-speed penalty of Deep Focus, allowing the Knight to heal two Masks at almost the regular speed.[Note 1] Especially useful against swarms of enemies or enemies who deal two Masks of damage per hit.
Hiveblood.png

Hiveblood
Combined with Hiveblood, it greatly helps tackling difficult platforming challenges, especially the White Palace.
Grubsong.png

Grubsong
Combined with Grubsong, it greatly helps tackling difficult platforming challenges, especially the White Palace.

Notes

  1. 1.0 1.1 1.2 Without any Charms, and ignoring the 0.25 second startup time, it takes 0.891 seconds to Focus. With Deep Focus, it takes 1.47015 seconds. With both Deep Focus and Quick Focus, it takes 0.9801 seconds.
Charm Compendium
Main Game
Wayward Compass.png

Wayward Compass
Gathering Swarm.png

Gathering Swarm
Stalwart Shell.png

Stalwart Shell
Soul Catcher.png

Soul Catcher
Shaman Stone.png

Shaman Stone
Soul Eater.png

Soul Eater
Dashmaster.png

Dashmaster
Thorns of Agony.png

Thorns of Agony
Fury of the Fallen.png

Fury of the Fallen
Fragile Heart.png

Fragile Heart
Fragile Greed.png

Fragile Greed
Fragile Strength.png

Fragile Strength
Spell Twister.png

Spell Twister
Steady Body.png

Steady Body
Heavy Blow.png

Heavy Blow
Quick Slash.png

Quick Slash
Longnail.png

Longnail
Mark of Pride.png

Mark of Pride
Baldur Shell.png

Baldur Shell
Flukenest.png

Flukenest
Defender's Crest.png

Defender's Crest
Glowing Womb.png

Glowing Womb
Quick Focus.png

Quick Focus
Deep Focus.png

Deep Focus
Lifeblood Heart.png

Lifeblood Heart
Lifeblood Core.png

Lifeblood Core
Joni's Blessing.png

Joni's Blessing
Grubsong.png

Grubsong
Grubberfly's Elegy.png

Grubberfly's Elegy
Hiveblood.png

Hiveblood
Spore Shroom.png

Spore Shroom
Sharp Shadow.png

Sharp Shadow
Shape of Unn.png

Shape of Unn
Nailmaster's Glory.png

Nailmaster's Glory
Dream Wielder.png

Dream Wielder
Kingsoul.png

Kingsoul
Void Heart.png

Void Heart

Unbreakable Heart.png

Unbreakable Heart
Unbreakable Greed.png

Unbreakable Greed
Unbreakable Strength.png

Unbreakable Strength
Dreamshield.png

Dreamshield
Weaversong.png

Weaversong
Sprintmaster.png

Sprintmaster
Carefree Melody.png

Carefree Melody
Grimmchild.png

Grimmchild
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