Different Types of Objectives, Achromatic objectives | Leica M125 B

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

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Leica M125 B, M165 C B user manual Different Types of Objectives, Achromatic objectives, Planachromatic objective 1×

Contents

Living up to Life Copyright Risks arising from, using the microscope for Leica M125 B nameplate General Notes Use in clean roomsCleaning Servicing Important Safety Notes Disposal Symbols UsedImportant information Explanatory notes Intended use of instrument Safety InstructionsDescription Non-intended use Transport Repairs, service workOnly original Leica Microsystems spare parts may be used Integration in third-party products Health risks Legal regulationsEC Declaration of Conformity Careful handling Column External power supply for the focusingLeica M165 C B Contents Different Types of Objectives Care, Maintenance, Contact PersonsLeica TL5000 Ergo Transmitted Light Base Leica M Series Congratulations Step Towards Infinity Fewer cables All new objectives of the Leica M series are parfocal Maximum CompatibilityObjectives Tubes On We Go Assembly Tools used Base and Focusing ColumnAssembling the column adapter Assembling the focusing drive Allen key, 3 mm Allen key, 4 mm Place the optics carrier on the focus Optics carrierTools used Assembling the Optics Carrier Groove No tools required TubeTools used Preparations Tools used Preparation EyepiecesMagnification range Preparation ObjectiveAttaching the objective TL5000 Ergo transmitted light base Unpacking the base Focusing drive and columnBottom using the 4 Allen screws Base is delivered with the adapter plate Terminal for the 50-watt power supply provided Wiring Connections Leica M165 C BNew Leica M series features extensive Later Cables Cable Duct Feeding the cables Quick Start Guide Fastest Route to Success Overview of an M Series Microscope Reference values Adjusting the interpupillary distanceCorrect interpupillary distance Look into the eyepieces If you do not wear glasses Using the EyepiecesDioptric Correction If you wear glasses Focusing FocusingFocusing drive can be operated either left- or right-handed Coarse/fine adjustment Adjusting the Resistance of the Focus Drive Adjusting the resistance Zooming Changing the Magnification ZoomLook into the eyepieces Focus on the specimen Enabling and disabling click stops Click Stops and MagnificationsMagnifications and fields of view Parfocality Parfocality More Comfort and Convenience for Your WorkRequirements for parfocal work Enlarge the view to the maximum level Focus on the specimen Closing the iris diaphragm Iris DiaphragmOpening the Iris Diaphragm Eyepieces Magnification Factor of the Eyepieces Following eyepieces are available for the M series Health Notes Potential sources of infection Using the Dioptric Correction Dioptric Correction Adjusting Dioptric Correction and Parfocality Graticules Use Objectives Optical Accessories Planachromatic objective 1× Different Types of ObjectivesAchromatic objectives Achromatic objectives with a long focal length Bases Leica TL5000 Ergo Transmitted Light Base Controls Control for the size of the aperture/ balance Leica TL5000 Ergo Transmitted Light Base Operation Switching the transmitted light base onOff Leica TL5000 Ergo Transmitted Light Base Operation Technical Data Light source Power supplyLeica TL5000 Ergo Transmitted Light Base Connections Appendix Example ParameterCalculation example magnification in the binocular tube Warranty benefits Care, Maintenance, Contact PersonsCare Protection from dirt Keep accessories in a dust-free place when not in useCleaning polymer components Dust and dirt will affect the quality of your results