Magnification options and package content - Magnification options: 1x, 0.5x, or 0.35x. Each package contains exactly one CtV lens. Lens bottom diameter: 28 mm. - Package contents: 1x CtV lens available in 0.35x, 0.5x, or 1x magnification. Compatibility and fit - Eyetube compatibility: Designed for 28 mm to 32 mm microscope eyetubes, including 30 mm and 30.5 mm variants. - Diameter adaptation: Can be adapted to different band diameters with the appropriate adapter to ensure a secure fit. Construction and reliability - Material and quality: Made from high-quality materials to ensure durability and stability during use. - Reliability: Built to meet a range of experimental requirements with consistent performance. Practical use scenarios - Educational microscopy: Ideal for classroom or home labs when observing prepared slides or basic specimens. - Industrial and quality control: Suitable for low-magnification inspection of small parts, electronics, or materials. - Hobby and field microscopy: Useful for quick field observations or hobby projects requiring adjustable eyetube magnification. Notes - The CtV lens is offered in magnifications of 0.35x, 0.5x, or 1x. Please select the desired magnification when ordering.