How to Solve the Experimental Focusing Mirror Puzzle

The Experimental Focusing Mirror is a puzzle in the Treacherous Light of the Depths quest in Version 4.1 of Genshin Impact. Learn how to solve this puzzle and where to find it here!

How to Solve Experimental Focusing Mirror Puzzles

Activate the First Focusing Mirror

The puzzle starts as you enter the underwater ruins. Find and activate the first Focusing Mirror (or the optical device) by following the light. Simply interact with the device and wait for the image to become clear to activate it.

Go the Second Focusing Mirror

Follow the beam of light from the first mirror to get to the second one. Unfortunately, it's missing a component, which you can get by solving the Energy Transfer Terminals puzzle.

Solving the Energy Transfer Terminals

Use the viewfinder to get onto the next one on the wall and get a better angle. Transfer the energy from the right cell to the left cell after getting a view on them. It should unlock the door after that, allowing you to grab the missing component for the second Focusing Mirror.

Go back to the device and start activating it. You will need to do it twice this time as there are two images showing.

Find and Activate the Third Focusing Mirror

You can find the third Focusing Mirror by following the light from the second mirror. It is also missing a component like the second one, but you can find it easily on the upper floor. Climb on the wall nearby and head back to add it to the device.

There will be three images you need to work on this time. Be patient and wait for each one to load clearly to solve it!

Experimental Focusing Mirror Location

Inside an Underwater Ruin

The Experimental Focusing Mirror puzzle is located in an underwater ruin in the eastern part of the Fontaine Research Institute Region and a part of the Treacherous Light of the Depths World Quest.

You can reach it by diving on the pier near the Teleport Waypoint and destroying the rocks to the cavern with the Xenochromatic Jellyfish's Ability. Continue going down until you reach the bottom. Follow the path, open up a few doors on the way, and you will eventually get inside the ruins.

Treacherous Light of the Depths Quest Guide

Experimental Focusing Mirror Information

Released in Version 4.1

Genshin Impact Version 4.1
Release Date	September 27, 2023

Experimental Focusing Mirror puzzle was released in the Version 4.1 update of Genshin Impact, which is on September 27, 2023! Along with it comes new areas to explore, new puzzles to solve, new enemies to defeat, and new content to experience!

4.1 Summary and Livestream Notes

Genshin Impact Related Guides

Fontaine Map Guide

Fontaine Area Map Guides

Related Fontaine Map Guides
Liffey Region	Fontaine Research Institute
Fortress of Meropide	Merusea Village
Narzissenkreuz Ordo	Erinnyes
Morte Region	Tower of Gestalt
Nostoi Region	Sea of Bygone Eras

Fontaine Exploration Guides

Significant Fontaine Location Guides

Fontaine Location Guides
Hydroculus	Fountain of Lucine	Shrine of Depths	Enigmatic Page
Teleport Waypoints	Treasure Chests	Remarkable Chests	Secret Treasure Map

Fontaine Item Guides

Fontaine Local Specialties
Rainbow Rose	Lumidouce Bell	Romaritime Flower	Beryl Conch
Subdetection Unit	Lumitoile	Lakelight Lily	Spring of the First Dewdrop
Other Items Found in Fontaine
Tidalga	Marcotte	Pluie Lotus	Bulle Fruit
Condessence Crystal	Ancient Key	Drained Conch Cup	Mysterious Core
Hydro Sigil	Strange Part	Key to Some Place	Credit Coupons
Energy Concentrating Component	Mysterious Ore	Arkhium Ore	Arkhium Lumenite
Spur Gears	Welfare Meal	Handwheel	Punched Tapes
Foggy Forest Branch	Simple Vault Key	Autumn's Map	Rocky's Map
Liam's Map	Rouge's Map	Barrow Map	Parker's Hopes Map
Athos Map	Freeman Map	Ridiculously Common Branch	Restored Score

Fontaine Domain Guides

Fontaine Domains Guides
Denoument of Sin	Echoes of the Deep Tides
Pale Forgotten Glory	Waterfall Wen
Faded Theater

All Fontaine Domains and Locations

Fontaine Quest Guides

Fontaine World Quests

4.6 Fontaine Puzzles and Features

4.6 Fontaine Features
Washer Octopus	Lost Grimoires and Mysterious Bookshelves
Wonderchime Flowers and Allochromatic Anemones	Summon Currents with Scylla
Music Score Locations	Auric Anglerfish
Break the Chains that Bind Scylla	Portus Anticus Luxurious Chest
The Flying Outlander Achievement Guide	Juliano's Hidden Chests
How to Pet Osse	How to Take the Blank Score
How to Return the Flying Bird Phantasms	How to Rebuild the Golden Aqueducts

4.2 Fontaine Puzzles and Features

4.1 Fontaine Puzzles and Features

4.0 Fontaine Puzzles and Features

Fontaine Enemies

Fontaine Boss Guides
Emperor of Fire and Iron	Icewind Suite	Millennial Pearl Seahorse
Experimental Field Generator	Hydro Tulpa	Legatus Golem
All-Devouring Narwhal	The Knave
Fontaine Enemy Guides
Fontemer Aberrants	Tainted Hydro Phantasm	Breacher Primus
Clockwork Meka	Fatui Operatives	Praetorian Golem
Local Legends Guides
Iron Viscount	Fairy Knight Twins	Ocean Circuit Judge
Vivianne of the Lake	Fading Veteran	Swords of the Gorge
Ninianne of the Lake	Dobharcu, Lord of the Hidden	Automated Supercomputing Field Generator
Luachra the Brilliant	Yseut	Liam
Rocky Avildsen	Mageblade Corrouge	Chassanion
Deianeira of Snezhevna	Cineas

All Interactive Map Guides

All Interactive Map Guides