Feature: For industrial microscope camera C-Mount lens 1-3/4 inch (42mm) mounting thread Doubles the total magnification power of your microscope and reduces the focus length Additional accessory that increases the working distance or magnification of the microscope Provides clear images; suitable for optical monocular lenses with 42mm threaded interfaces Suitable for video microscopy 2X magnification objective lens; increases magnification by 2 times and reduces working distance Auxiliary large objective lenses such as 2X are compatible with 10A monocular video microscopes Magnification Power: 2.0X Objective magnification range: 0.7X - 4.5X (approximately 10X - 180X on display; with 2.0X Barlow lens, approximately 2.45X - 360X on display) Note: Product design and appearance may be updated; slight variations in color or form may occur. Please consider this before ordering if specific appearance or color is required Material: Metal Color: Black Package Contents: 1 x Monocular lens Note: Other items not included Lighting and display differences may cause slight color variation between image and actual item Measurement error allowed: +/- 1-3 cm