SPECIFICATIONS
  • standard objectives
  • standard flatfield objectives
  • Ultra-Plan objectives
  • fluorescence microscopy objectives
  • phase-contrast objectives
  • long working-distance objectives
  • polarising microscopy objectives
  • special widespectral objectives
  • special macro objectives for criminalistic microscopes
  • special objectives for CCD and CMOS cameras


    STANDARD OBJECTIVES

    These microscope objectives are new improved designs for large-series production. They are attractively priced but perfectly suitable for all modern routine microscopic work in biology, medicine etc...

    transmitted or reflected light
    optimum field of view (in eyepiece), mm 18
    maximum field of view (in eyepiece), mm 20


    Some specifications:
    tube length, mm 160
    parfocal distance (RMS), mm 33
    N MAGNIFICATION NUMERICAL APERTURE TOTAL WORKING DISTANCE, mm TYPE OF ABERRATION CORRECTION
    1 3.5 0.10 25.0 PLANACHROMAT
    2 8 0.20 10.0 ACHROMAT
    3 9 0.20 14.0 PLANACHROMAT
    4 10 0.25 4.2 ACHROMAT
    5 16 0.35 3.7 ACHROMAT
    6 20 0.40 1.66 ACHROMAT
    7 40 0.65 0.66 ACHROMAT
    8 90 1.25 OIL 0.28 ACHROMAT

    parfocal distance (DIN), mm 45
    N MAGNIFICATION NUMERICAL APERTURE TOTAL WORKING DISTANCE, mm TYPE OF ABERRATION CORRECTION
    1 4 0.12 15.0 PLANACHROMAT
    2 10 0.30 4.0 ACHROMAT
    3 25 0.50 1.60 ACHROMAT
    4 40 0.65 0.62 ACHROMAT
    5 100 1.25 OIL 0.30 ACHROMAT
    10 100 1.25-0.7 iris 0.29 C-PLANACHROMAT

    tube length, mm infinity
    parfocal distance (DIN or RMS), mm 45 or 33
    N MAGNIFICATION NUMERICAL APERTURE TOTAL WORKING DISTANCE, mm TYPE OF ABERRATION CORRECTION
    1 2.5 0.04 30.0 PLANACHROMAT
    2 5 0.10 25.0 PLANACHROMAT
    3 10 0.25 3.8 ACHROMAT
    4 20 0.40 0.58 ACHROMAT
    5 40 0.65 0.64 ACHROMAT
    6 50 1.00 OIL 0.32 ACHROMAT
    7 63 0.85 0.55 ACHROMAT
    8 63 1.15 WATER 0.40 ACHROMAT
    9 63 1.25 OIL 0.28 ACHROMAT
    10 100 1.20 WATER 0.32 ACHROMAT
    11 100 1.25 OIL 0.30 ACHROMAT

    Some optical diagrams of our standard range of microscope objectives.New designs offer improved performance at low cost.




 
FOCUS Inc.
1B, 5-th Upper street, Saint-Petersbourgh 194292, Russia
Phone:             +7-812-7154960
Phone/Fax:     +7-812-9328906
E-mail:              focus@focusinc.ru