Adjustable Diopter Lens for NightCrystal Night Vision Scope M3/M4/M4A/M5

The adjustable diopter lens is used for NightCrystal Night Vision Scope M3/M4/M4A/M5 as replacement.
With this adjustable diopter lens, people with hyperopia (farsighted) eyes were able to see the screen clearly as if they are wearing presbyopic glasses.

Visual Comfort and Clarity: Adjusting the diopter ensures that what the photographer sees through the viewfinder is sharp and clear. This not only enhances the overall visual experience but also reduces eye strain during prolonged shooting sessions.