|This article is about a/an monster in Engine Sentai Go-Onger.|
- ""A lens is a sea slug (mamakao) that reflects the truth...no. I mean, eye (mamako) racchi!""
- ―Lens Banki's final words before his destruction.[src]
A lens (レンズ renzu?) Savage Sky Barbaric Machine Beast sent by Kitaneidas to use his power to teleport people into Junk World, using the Braneworld's ability to mechanize humans as part of his plan to create new Ugatz. Though scrapped by Engine-Oh and GunBir-Oh, Lens Banki's pictures of their final attacks are used in the creation of Kagami Banki.