Leica DM IRB manual Or A, B, C, Objective type performance class Plan, 10x/0.22, 114

D (or A, B, C)

Pupil position of objective (important, e. g. for IMC integrated modulation contrast).

Objective type (performance class):

C Plan

Achromatic objective with particularly good price/performance ratio. Field performance max. 20 mm.

N Plan

Achromatic objective with increased field per- formance of at least 20 mm.

PL FLUOTAR ®

Semiapochromats with particularly good field performance of at least 25 mm and chromatic correction. Universal optics for all techniques.

PL APO

Plan apochromats with a field performance of over 25 mm and maximum chromatic correction. The best objectives in the Leica range.

HC

Harmonic Components.

X

Universally applicable, also backwards com- patible with Delta optics (= predecessors of HC optics).

L

Long working distance.

10x/0.22

Magnification and aperture. The aperture (pick-up angle) influences resolution, field depth, contrast and brightness. Objectives with built-in iris diaphragm have an engraving showing the maximum and minimum aperture, e. g. 0.85 – 0.55.

!n. b.:

Objectives with built-in iris diaphragm.

The knurled ring may only be used for adjusting the diaphragm, not for screwing the objective in or out.

Risk of damge!

OIL, W, IMM

Immersion objectives for oil, water, universal (oil, glycerine, water, etc.).

PH

PH = phase contrast objective, with additional indication of assigned light ring in condenser, e. g. PH2.

BD

BD = brightfield/darkfield; objectives for incident light microscopy with M 32 screw thread.

CORR

Correction mount for continuous adjustment to coverslip/specimen slides or thickness of vessel base.

P, POL

Strain-free objective for quantitative polarisa- tion microscopy.

U-V-I

With special achromatic correction, i.e. parfocal from the ultraviolet through the visual to the near infrared range (from 340 nm to 1000 nm).

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