LEAN Mini Monocular 8x Magnification 21mm Lens Telescope

With an 8x magnification and a 21mm objective lens, this LEAN mini monocular delivers a wide 126m field of view at 1000m, making it ideal for birdwatching, hiking, and travel. The BAK4 roof prism and fully multi-coated lenses ensure bright, high-contrast images with true-to-life colour.

Overview

The LEAN Mini Monocular is a compact and lightweight optical instrument designed for outdoor enthusiasts. Its 8x magnification brings distant subjects eight times closer, while the 21mm objective lens gathers sufficient light for clear viewing in daylight conditions. The roof prism design with BAK4 glass and fully multi-coated optics maximises light transmission, resulting in sharp, bright images. The monocular features an eyepiece focus system that allows quick and precise focusing, with a minimum focus distance of just 2 metres. The body is constructed from ABS with a rubber armour coating, providing a secure grip and protection against minor impacts. Included accessories—a carrying pouch, wrist strap, and cleaning cloth—make it ready for use on the go.

What stands out

• 8x magnification with 21mm objective lens for detailed viewing
• BAK4 roof prism and fully multi-coated lenses for superior brightness and clarity
• Wide field of view: 126m at 1000m
• Compact and lightweight design with rubber armour for durability
• Close focus down to 2 metres for observing nearby subjects
• Includes carrying pouch, wrist strap, and cleaning cloth

Technical details

• Magnification: 8x
• Objective lens diameter: 21 mm
• Prism type: Roof prism
• Prism material: BAK4
• Lens coating: Fully multi-coated (FMC)
• Field of view at 1000m: 126 m
• Angular field of view: 7.2°
• Exit pupil diameter: 2.6 mm
• Eye relief: 10 mm
• Minimum focus distance: 2 m
• Focus system: Eyepiece focus
• Body material: ABS, rubber armour
• Colour: Black
• Included accessories: Carrying pouch, wrist strap, cleaning cloth

Our verdict

The LEAN Mini Monocular offers impressive optical performance in a pocket-sized package. Its BAK4 prism and fully multi-coated lenses deliver bright, sharp images, while the wide field of view and close focus capability add versatility. Whether you're a nature lover or a traveller, this monocular is a reliable companion for exploring the world in detail.