HIKMICRO ALPEX 4K A50EL Digital Day & Night Vision Scope can perform in all ambient light that is present. It has an advanced 3840×2160 UHD detector, 50 mm lens, and 1920 × 1080 0.49” sub-round OLED display, providing full-color clarity in daytime and classic black & white viewing at night. The traditional-style 30 mm tube design meets the needs of professional hunters who value traditions and seek technological superiority.