Leica upright metallographic microscope (Leica fully manual upright type from Germany) DM2500MIntroduction
Leica upright metallographic microscope DM2500MIt is a product launched by Leica in 2005, which adopts HC infinite axial and radial dual chromatic aberration correction optical technology in optical design to eliminate interference factors such as stray light; Within the entire optical system, optimize and combine all components related to imaging quality (objective lens, barrel lens, eyepiece tube, eyepiece, photographic interface, etc.) to achieve optimal image resolution and contrast, while pursuing high resolution while obtaining sharp images.

Leica upright metallographic microscope DM2500MSuitable for scientific research, quality inspection, and quality control departments in the steel, metal, and chemical industries. Reflected light can achieve bright field, dark field, polarization, differential interference, and fluorescence observation functions, while transmitted light can achieve bright field, dark field, polarization, and differential interference observation functions. It can be connected to CCD cameras and image analysis software for material analysis.

Leica upright metallographic microscope (German Leica fully manual upright type) DM2500M main features
1. Optional eyepiece tube with angle adjustment greatly reduces operator fatigue.
2. The diameter of the eyepiece field of view is 22mm.
3. The objective lens has a diameter of 32mm, which increases the luminous flux by 40% and has higher resolution and depth of field.
4. Manual control of objective lens conversion.
5. Upgradeable optional multiplier, available in three options: 1.5X, 1.6X, and 2X.
6. Manual conversion between bright field, dark field, polarization, and interference observation modes.
7. The aperture stop position corresponds to the objective magnification and is accurately marked with different colors to quickly restore the working state. The field stop position corresponds to the field of view m of the eyepiece, as well as the dark field position and camera target size position.
8. The body adopts reverse temperature compensation technology, effectively reducing the focal plane drift caused by heat generation.
9. It has 4 color filter holder slots, which can simultaneously insert four different color filters in the position to be inserted. It can be pushed in and out at any time to prevent dust from entering the optical path.
10. Equipped with a focusing height limit device m to prevent the sample from touching the objective lens.
11. Optional Leica original microscope dedicated digital imaging device, realizing all factory configurations and achieving overall harmony.
12. Leica offers various image processing and analysis software options, including depth of field extension software, general image analysis software, and specialized software for metallographic analysis.
13. Can be used for high-precision measurement with a dry bench scale instrument;
14. Can accommodate large-sized stages for semiconductor testing;
15. Can be upgraded to other observation methods.

Leica upright metallographic microscope (German Leica fully manual upright type) DM2500M technical parameters
1. Eyepiece: 10X, field of view diameter 25mm
2. Eyepiece tube: adjustable pupil spacing of 55-75mm
3. Objective lens>Large magnification and numerical aperture: 5X, NA=0.15; 10X，NA=0.30； 20X，NA=0.50； 50X，NA=0.85； 100X，NA=0.90
4. Manual stage: with a movement range of 76X50mm, it can rotate 110 degrees, carry a load of 4Kg, and can adapt to a maximum sample height of 40mm
5. Manual focusing: lifting range=50mm, with coarse, medium, and fine focusing step accuracy, fine focusing accuracy of 1um
6. Visual magnification: 50X -1000X (this range can be expanded as needed)
7. Number of objective lens positions: metallographic objective lens can hold 5 positions, ordinary objective lens can hold 6 positions