- The adjustable aperture is crafted from high-quality aluminum alloy and steel, making it ideal for microscopes, cameras, spectroscopes, and other optical instruments. - Material: Durable metal construction ensures reliable performance. Outer diameter: ø19.80 mm. Thickness: 5 mm. - Enhance your microscopy experience with our extensive range of accessories. From lenses to slide preparation kits, we provide everything you need to maximize your microscope's performance. - Practical applications include: - Fine-tuning light exposure for enhanced imaging in microscopy, leading to clearer and more detailed observations. - Improving focus and clarity in spectroscopic analysis, allowing for precise measurement of light wavelengths. - Supporting various optical instruments, ensuring compatibility and versatility in your research or hobby projects. - Choose our adjustable aperture for its exceptional durability and compatibility, designed to meet the needs of both professional and amateur users alike.