ohhunt® 4X32 Prism Scope Red Optic Fiber SightFlexible Diopter Design: this diopter setting can be adjusted from 2 to +2. Can be adjusted according to your needs. Honeycomb Filter: killflash anti reflection device is a honeycomb filter, it is purpose as a sunshade, preventing glare. Multi Coated Lens: This scope features a multi layer coating objective lens. providing a clear and bright field of view. High quality optical glass ensures high transparency, and reduced chromatic aberration,