_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Microscope Plan Achromatic Objective Lens 4X Biological Metallurgical Microscope Objectives _x000D_ _x000D_ _x000D_ Magnification: 4X _x000D_ NA: .10 _x000D_ Optical Working Distance: 29.04mm _x000D_ Thread: RMS _x000D_ Mechanical Tube Length: 160mm _x000D_ _x000D_ Cover Glass Thickness:0.17mm _x000D_ Color Correction: achromatic _x000D_ Field Correction: plan _x000D_ Immersion Medium: none _x000D_ Nosecone: fixed _x000D_ Additional Information: _x000D_ Objective-Iris: Without Iris _x000D_ Objective-Mounting Size: 20mm _x000D_ Optics: Plan _x000D_ Objective Power: 4X _x000D_ Objective-Type: Compound Brightfield Darkfield _x000D_ Colour: silver _x000D_ Material: metal _x000D_ _x000D_ Package Contents: _x000D_ 1 x achromatic Objective Lens _x000D_ _x000D_ Only the above package content, other products are not included. _x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ About _x000D_ _x000D_ _x000D_ We accept , we have a lot of experience in dropshiping and will not put any ads and materials in the order. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_