Powerful bird watching monoculars at 8x magnification for the sharp detail you need when observing nature. It is the ideal power, increasing reality 8 times, enough to see the target but without shaking the image, and at the same time conserving enough field of view.
Product Name: 8-24X30 Monocular Telescope
Zoom: 8-24
Objective Lens Diameter: 30mm
Eyepiece diameter: 15mm
Field of View: 45.5-80.5M/1000M
Exit pupil diameter: 1.2-1.7mm
Exit pupil di: 17-14mm
Prism Category: BK4
Focus : stretch or rotate
Product net weight: 156g
Longest dimension: 174 * 44mm
The shortest size: 127 * 44mm

steps

Adjust the eyepiece: Adjust the eyepiece to raise the cup to the proper height. (Keep the eyes and eyepiece lenses at the best di to avoid blurry eyes)
Adjust the focus: Eyes close to the eyepiece, the objective lens at the target scene, and then the teles lens tube fully pulled out, turn the focus wheel clockwise until you see a clear target up to the moment.
Adjust Zoom: Slowly adjust the magnification adjustment ring. Adjust the required magnification, and then fine-tune the focus hand wheel, until the lens clears so far.