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Biological
Magnifiers 1 Magnifiers 2 Stereos Monozoom Biological Materials Inverted Manipulators Manipulation Anti-vibration Illumination Cameras Objectives Specials Lamps by type Lamps by Mic.

 

Our range of Biological microscopes includes

  •  Routine microscope
  • Research microscopes

FOR All TECHNIQUES including brightfield, darkfield, phase contrast, fluorescence.

See below for information on:

marking on objectives        coloured objective rings      marking on eyepieces

MARKING OF OBJECTIVES

40/0.65 Magnification/Numerical aperture
160 Mechanical tube length in mm (for finite tube length objectives)
Infinity corrected objectives
/0 Corrected for use with uncovered specimens
/0.17 Corrected for cover glass 0.17mm thickness
OIL Oil immersion objective
W Water immersion objective
GLYC Glycerol immersion objective
PH2 Phase Contrast objective - the number denotes the required condenser ring
POL For polarising (strain free)
EPI For Epi- illumination (metallurgical microscopes)
D For Epi-illumination darkfield and brightfield objectives
DIC For Differential Interference Contrast
L Long working distance objective (Working distance usually given in mm)
PLAN Flat field
APO Apochromat correction - no such markings indicate achromat objective (intermediate corrections are usually marked with manufacturer's designation e.g. Fluotar

COLOURED RINGS ON OBJECTIVES DENOTE MAGNIFICATION

Black Grey Brown Red Orange Yellow Light green Dark green Light Blue White
1x/1.25x 1.6x/2x 2.5x/3.2x 4x/5x 6.3x/8x 10x/12.5x 16x/20x 25x/32x 40x/50x 100x/125x/160x

MARKING OF EYEPIECES

10x/20 Magnification/Field of view number
Drawing of spectacles High eyepoint suitable for spectacle wearers
C Compensating type
Circle with cross inside Built-in centered cross line (usually eyepiece has locating pin