SZ61 & SZ51 Zoom Stereo Microscopes

The standards set by the SZ61 and SZ51 are a revelation. The "Comfort View" eyepiece design and the accessible, responsive controls make operation easier and less fatiguing than ever before. The compact design, incorporating the Greenough optical system, delivers excellent flatness and ample depth of field as well as clarity, detail, and accurate color. Dependable, high-performance optics are central to the production of consistent, accurate results in today's widening range of biological microscopy applications-as are ergonomic features which make even long-duration tasks easier and less demanding to perform.
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SZ61/SZ51 Zoom Stereomicroscope Specifications

Item Specifications
Microscope Body SZ61 SZ61-60 SZ61TR SZ51 SZ51-60 Magnification SZ61 SZ61-60 SZ61TR SZ51 SZ51-60
0.67X to 4.5X 0.8X to 4X
Zoom ratio 6.7:1 5:1
Working distance 110mm
Tube inclination angle 45 60° 45° 60°
Interpupillary distance adjustment Left/right interlocked range: 52mm to 76mm (using the WHSZ10X eyepieces)
Video camera adaptability -- C-mount (0.5X built-in) --
Zoom adjustment knob Left/right single-shaft horizontal knob distance high/low magnification stopper incorporated.
Optical components Lead-free
Auxiliary Objective Eyepieces Mounting by screwing into the thread at the bottom of frame (M48 thread X0.75)
"Comfort View" WHSZ series Lead-free
Stand SZ2-ST SZ2-ILST Frame installation SZ2-ST SZ2-ILST
Standard stand LED reflected/transmitted illumination stand
Mounting diameter: 76mm
Focusing adjustment Focusing stroke: 120mm
Stage plate SZ2-SPBW (Black & white for anti-ESD) SP-C (Clear glass plate) The dedicated glass plate in 100mm dia. included
Light source Fiber optic illumination system SZ2-LGB mountable (option)
Transmitted light illumination attachment(SZ2-ILA) mountable (option)
Transmitted illumination: LED
Reflected illumination: LED
Average LED life span: 6000 hrs.
Input rating: 100-120V/200-240V~0.15/0.1A, 50/60Hz
Weight Zoom body only 1,300g 1,500g 1,300g
Configuration 3 3,520g 3,720g 3,520g

Configuration 3: Zoom body + WHSZ10X-H(2) + SZ2-ST

Optical Performance

Microscope Body Zoom Magnification WHSZ10X-H WHSZ10X WHSZ15X-H WHSZ20X-H WHSZ20X WHSZ30X-H
F.N. 22 F.N. 16 F.N. 12.5 F.N. 7
Total magnification Field of view (mm) Total magnification Field of view (mm) Total magnification Field of view (mm) Total magnification Field of view (mm)
SZ61 0.67x 6.7 32.8 10.1 23.9 13.4 18.7 20.1 10.4
1x 10 22 15 16 20 12.5 30 7
2x 20 11 30 8 40 6.3 60 3.5
3x 30 7.3 45 5.3 60 4.2 980 2.3
4.5x 45 4.9 67.5 3.6 90 2.8 135 1.6
SZ51 0.8x 8 27.59 12 20 16 15.6 24 8.8
1x 102 22 15 16 20 12.5 30 7.0
2x 20 11 30 8.0 40 6.3 60 3.5
3x 30 7.3 45 5.3 60 4.2 90 2.3
4x 40 5.5 60 4.0 80 3.1 120 1.8

*No auxiliary objective lens is attached.

Auxiliary Objectives

Working distance (mm)
110AL0.25X 400
110ALK0.3X 250-350
110ALK0.4X 180-250
110AL0.5X 200
110AL0.62X 160
110AL0.75X 130
110AL1.5X 61
110AL2X 38

"Comfort View" WHSZ eyepiece

F.N. Diopter adjustment Reticle Focal magnification
WHSZ10X 22 -- N.A. --
WHSZ20X 12.5 -- N.A. --
WHSZ10X-H 22 -8-+5 Yes*2 --
WHSZ15X-H 16 -8-+5 Yes*2 --
WHSZ20X-H 12.5 -8-+5 Yes*2 1.3X
WHSZ30X-H 7 -8-+5 Yes*2 2X

*2Applicable reticle size: 24mm diameter, t1.5

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