Fisch has five telescope lenses tied to the Astral Observatory. Four are crafted by giving materials to Astronomer Vega, while Stellar Lens is earned through Brayden's quest by collecting six Broken Stars. That split saves you from hunting for a recipe that does not exist.
Start at Astronomer Vega and unlock the telescope
Start at Astronomer Vega

Head to the Observatory on the main platform and talk to Astronomer Vega in the laboratory. Accept the objective, then fish five Battery Casings at the Mine Shaft and return to Vega.
Batteries power the telescope, so lenses alone do not start the anomaly. For the craftable lenses, take each completed material set back to Vega.
Craft the four lenses at Astronomer Vega
Each crafted lens needs one of each listed material. Use the broad area names as your route markers while you collect them.
| Lens | Required materials | Where to get them | Turn-in note |
|---|---|---|---|
| Moon Lit Lens | 1 Frozen Glass; 1 Aurora Boreal Man o' War; 1 Frozen Resin | Frozen Glass: Snowcap Blue Moon Astral Cavern; Man o' War: Boreal Hollow; Frozen Resin: Mushgrove Swamp | Submit one of each to Astronomer Vega. |
| Experimental Lens | 1 Quartz Glass; 1 Chaotic Golden Trout; 1 Fallen Resin | Quartz Glass and Golden Trout: hidden Cryogenic Canal cavern; Fallen Resin: Mushgrove Swamp | Submit one of each to Astronomer Vega. |
| Seasonal Lens | 1 Seasonal Glass; any 1 Seasonal Everturn Sturgeon; 1 Rotting Glass Diamond | Seasonal Glass: Everturn Forest Astral Cave; Sturgeon: Everturn Forest; Rotting Glass Diamond: Overgrowth Caves | Submit one of each to Astronomer Vega. |
| Deep Lens | 1 Hardened Glass; 1 Abyssal Comb Jelly; 1 Abyssal Resin | Hardened Glass and Comb Jelly: Abyssal Zenith Astral Cavern; Abyssal Resin: Mushgrove Swamp | Submit one of each to Astronomer Vega. |
Mushgrove Swamp is the repeat stop because it supplies the Frozen, Fallen, and Abyssal Resin used across three recipes. If you are making more than one lens, plan that visit carefully and save yourself three scenic detours.
If the deeper route is still locked, how to enter The Deep in Fisch gives you the access context before you head toward Abyssal Zenith.
Earn the Stellar Lens through Brayden's quest
Stellar Lens is not crafted at Vega. Start Brayden's quest, then collect the six Broken Stars across these locations:
- Terrapin Island
- Roslit Bay Volcano
- Mushgrove Swamp
- Ancient Isle
- Snowcap Island
- Moosewood
The Fisch Broken Star locations guide breaks those stops into landmark directions while you work through the route. Once all six Broken Stars are collected, Brayden's quest awards Stellar Lens. Treat the stars as quest objectives, not crafting ingredients.
Fisch telescope lens FAQ
Is Stellar Lens crafted at Astronomer Vega?
No. Stellar Lens is earned through Brayden's quest after you collect six Broken Stars. The four Vega lenses are the craftable ones.
Where do I begin the telescope objective in Fisch?
Talk to Astronomer Vega in the Observatory laboratory on the main platform. Fish five Battery Casings at the Mine Shaft, then bring them back to Vega.
Do I need all five lenses before using the telescope?
No. The opening power step uses five Battery Casings, not all five lenses. Four lenses are crafted at Vega, and Stellar Lens comes from Brayden, so there is no fifth Vega recipe to complete.









