Adjustable diaphragm specifically designed for PVS14 night vision devices, allowing for precise control of light entry. Diaphragm adjustment size ranges from 1mm to 23mm, providing versatility for various lighting conditions. Enhances image clarity and contrast in low-light environments, improving overall night vision performance. construction ensures long-lasting use, making it suitable for outdoor and applications. Easy to install and adjust, allowing users to quickly adapt to changing visibility conditions. This adjustable diaphragm is an essential accessory for PVS14 night vision devices, enabling users to fine-tune their equipment for optimal performance in diverse lighting situations. With a range of adjustment sizes from 1mm to 23mm, it enhances image quality and clarity, ensuring that you can see clearly even in the darkest environments. Its robust design guarantees durability, making it ideal for both recreational and professional use. The straightforward installation process allows for quick adjustments, ensuring you are always prepared for any situation. Color: As Shown Material: Metal Package Contents: 1pc adjustable diaphragm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.