MAGUS 20PL60 Plan 20х/0.40 ∞/0.17 H60mm Objective

The resolution limit of a 20х/0.40 objective is 0.69μm. Chromatic aberrations are corrected for blue and red, spherical aberration for green, and the field curvature is corrected for 90% of the field of view diameter.

The objective is designed for the infinity-corrected tube length. The parfocal distance is 60mm. When a 10/22mm eyepiece is used, the diameter of the field of view is 1.1mm. The objective is designed to be used with specimens with 0.17mm coverslips.

The lower limit of the microscope’s useful magnification, when a 20x objective is used, is 200x. Lower magnification does not allow you to distinguish the details of the specimen whose image is formed by the objective. The upper limit of the useful magnification, when a 20x objective is used, is 400x. Higher magnification is considered “useless” as it provides no new detail in the image of the sample. With the 20x/0.40 objective, use the eyepieces with magnifications from 10x to 20x.

Plan achromatic objectives form an image that has the same focus in the center and at the edges and, therefore, the distortion is negligible. This strength is used for digital imaging and combining them with wide-field eyepieces with a 22mm field of view.

The objective is suitable for studying the structural details of the specimens from 1µm in size in a large field of view, e.g., for analyzing clean catch urine samples.

Compatibility:

• MAGUS Bio 260T Biological Microscope
• MAGUS Bio DH260 Biological Digital Microscope
• MAGUS Bio 270T Biological Microscope
• MAGUS Bio 290T Biological Microscope
• MAGUS Lum 450L Fluorescence Microscope