Leica M125 B Different Types of Objectives, Achromatic objectives, Planachromatic objective 1×

The Different Types of Objectives

To meet the various requirements regarding imaging properties, there is a choice of high- quality interchangeable planachromatic and planapochromatic objectives and also lower- priced interchangeable achromatic objectives.

★★ Achromatic objectives are particularly suited for specimens with high-contrast structures.

★★ Flat-field (planachromatic) objectives are particularly well suited for studying flat objects such as wafers and thin sections.

★★ With planapochromatic objectives, the finest structures are visible with high contrast. The sophisticated apochromatic correction allows these objectives to attain the highest color brilliance and fidelity.

Achromatic objectives

The 0.32×, 0.5×, 0.63×, 0.8×, 1×, 1.5×, 2× achromatic objectives offer countless variants for selecting the object field diameter, magnifi- cation ranges and working distances (see page 54).

Planachromatic objective 1×

For the highest requirements for overall image quality, we recommend equipping the micro- scope with the 1× plan (flat-field) objective, which returns sharp, contrast-rich object fields all the way to the border.

Achromatic objectives with a long focal length

For special applications, achromatic objectives with long working distances and focal lengths of f=100 mm to 400 mm are available.

Leica M series User Manual 46