0.5X Stereo Microscope Auxiliary Objective Lens: Effectively magnifies the field of view. Significantly Increases Working Distance: Extends the working distance up to 165mm. Easy Attachment: Simply screws onto the objective lens. Standard Mounting Thread: This lens comes with a 1-7/8" (48mm) mounting thread. Dual Magnification: Provides double the magnification of the original objective lens, making it a very practical accessory. Features: 0.5X Stereo Microscope Auxiliary Objective Lens: Effectively magnifies the field of view. Significantly Increases Working Distance: Extends the working distance up to 165mm. Easy Attachment: Simply screws onto the objective lens. Standard Mounting Thread: This lens comes with a 1-7/8" (48mm) mounting thread. Dual Magnification: Provides double the magnification of the original objective lens, making it a very practical accessory. Specification: Material: Metal, aluminum alloy, glass lens Model: KP-0.5X Weight: 85g/3oz Magnification: 0.5X Stereoscopic Microscope Objective: 0.3 times Working Distance: 165mm Mounting Thread Size: 48mm/1.9 inches Package List: 1* 0.5X Auxiliary Lens