Key specifications Diameter: 36 mm Focal length: 90 mm Magnification options: 10x, 8x, 6x, 5x Lens type: double convex loupe Material: optical glass Intended use: experimental optical instrument (size 36 mm) Why this loupe is useful Precise magnification choices: Four fixed magnifications (10x, 8x, 6x, 5x) let you choose the level of detail you need for inspection, measurement, or demonstration. Consistent imaging geometry: A focal length of 90 mm provides a predictable working distance for hands-free setups and repeatable experimental conditions. Simple, reliable optics: The double convex optical glass lens delivers straightforward magnification with minimal complexity, making it easy to integrate into experiments and inspection routines. Compact form factor: The 36 mm diameter and 36 mm size make the loupe suitable for small bench setups, handheld inspection, or incorporation into optical experiments where space is limited. How it solves common problems Reduces eye strain when viewing small details by providing clear magnification levels appropriate for tasks such as component inspection or specimen study. Improves repeatability in experimental setups by combining a fixed focal length with a defined lens diameter for consistent alignment. Offers a durable optical element for controlled lab or field use thanks to its optical glass construction. Practical applications (use scenarios) Electronics inspection: Select the appropriate magnification to examine solder joints, component leads, and PCB traces during troubleshooting or quality checks. Educational and laboratory experiments: Use the loupe as a reliable optical element for optics demonstrations, student labs, or prototype testing that require a 36 mm, 90 mm focal length lens. Precision craft and repair: Inspect small mechanical parts, watch components, or jewelry details where controlled magnification and a compact lens size improve visibility and handling. What to expect in performance and handling Clear magnification choices for task-specific use: 10x for fine detail, 8x and 6x for general inspection, 5x for broader overviews. Predictable working distance defined by the 90 mm focal length, facilitating setup planning and reproducible measurements. A compact 36 mm diameter lens that fits into small-scale optical assemblies or handheld use in experimental contexts. Compatibility and setup notes Designed as an experimental optical instrument. It is suitable wherever a 36 mm diameter, 90 mm focal length double convex optical glass loupe is required. Ensure your mounting or holder accommodates a 36 mm lens diameter for stable alignment. Ordering information Available in magnifications: 10x, 8x, 6x, and 5x. Choose the magnification that best matches your inspection, experimental, or educational needs.