Description

Objective for brightfield observations. The resolution limit of a 40x/0.65 objective is 0.43μm. 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 45mm. When a 10/22mm eyepiece is used, the diameter of the field of view is 0.55mm. The objective is designed to be used with specimens with 0.17mm coverslips.

The lower limit of the microscope’s useful magnification, when a 40x objective is used, is 325x. 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 40x objective is used, is 650x. Higher magnification is considered “useless” as it provides no new detail in the image of the sample. When a 40x/0.65 objective is used, use 10x–15x eyepieces to utilize the useful magnification of the microscope.

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 for combining them with wide-field eyepieces with a 22mm field of view.

Compatibility:

• MAGUS Bio 230B Biological Microscope
• MAGUS Bio 230BL Biological Microscope
• MAGUS Bio 230T Biological Microscope
• MAGUS Bio 230TL Biological Microscope
• MAGUS Bio 250B Biological Microscope
• MAGUS Bio 250BL Biological Microscope
• MAGUS Bio 250T Biological Microscope
• MAGUS Bio 250TL Biological Microscope
• MAGUS Lum 400 Fluorescence Microscope
• MAGUS Lum 400L Fluorescence Microscope