Description
Zeiss Stemi SV 11 Binocular Microscope Head 455056 Achromat S 1.0x Objective
This listing is for a Zeiss Stemi SV 11 stereo zoom microscope head (part number 45 50 56) paired with a Zeiss Achromat S 1.0x objective (part number 45 50 60). The Stemi SV 11 is a high-performance Galilean stereo zoom head made in Germany, offering a wide 11:1 zoom range from 0.6x to 6.6x in a compact binocular body. Two eyepiece extension tubes are included. Note: the zoom knob outer shell is damaged (cracked and broken, visible in photos), and the rear back plate is missing — the seller documents the unit as functioning as intended despite these defects.
Specifications & What's Included
- Head: Zeiss Stemi SV 11 binocular zoom head, part number 45 50 56
- Objective: Zeiss Achromat S 1.0x, part number 45 50 60
- Zoom magnification range: 0.6x to 6.6x (11:1 ratio)
- Objective focal length: f = 100mm
- Working distance (WD): 90mm
- Resolution: R = 3.9 µm
- Eyepiece tube diameter: 30mm
- Eyepiece tube depth: 90mm
- Country of manufacture: Germany
- Known defects: zoom knob outer shell damaged (cracked); rear back plate missing
- Includes: Stemi SV 11 head, Achromat S 1.0x objective, and two eyepiece extension tubes
Applications
The Zeiss Stemi SV 11 is a professional-grade stereo zoom microscope designed for demanding inspection, dissection, and quality-control work in laboratory, electronics, and industrial settings. The Stemi SV series, introduced in the 1980s and 1990s, became a standard in university biology labs, semiconductor fabs, and precision manufacturing for its wide zoom ratio and long working distance — the 90mm WD of the S 1.0x objective keeps ample clearance for manipulation work under the lens. Common applications include PCB inspection and rework, biological dissection, gemology, microelectronics assembly, and materials science. The wide zoom range (0.6x–6.6x at the head, multiplied by eyepiece magnification) makes it suitable for both broad survey work and detailed close-up inspection without changing objectives. Zeiss Stemi heads accept a range of auxiliary objectives and are compatible with Zeiss Stemi SV 11 stands and focusing mounts, making this head useful as a replacement or upgrade component for an existing Stemi SV 11 system.
This Zeiss Stemi SV 11 binocular stereo microscope head has two known issues: the zoom knob is damaged (the outer shell is cracked and broken, as shown in the close-up photos), and the rear back plate is missing, leaving the internal optical mechanism exposed. Despite these defects, the unit has been documented by the seller as functioning as intended — the zoom mechanism operates and the optics are intact. The head and Achromat S 1.0x objective show cosmetic wear consistent with lab use, including light scuffs and a JR Instruments service sticker on the body. Please review all photos carefully to assess the condition before purchasing and contact us with any questions.
Warranty Information
Additional Information
Brand: |
Zeiss |
Model: |
Stemi SV 11 |
MPN: |
45 50 56 |
Secondary Model: |
45 50 60 |
SKU: |
46504 |
Type: |
Stereo Zoom Microscope Head with Objective |
Head Part Number: |
45 50 56 |
Objective Part Number: |
45 50 60 |
Objective Type: |
Achromat S 1.0x |
Zoom Magnification Range: |
0.6x to 6.6x |
Objective Focal Length: |
f = 100mm |
Working Distance (WD): |
90mm |
Resolution: |
R = 3.9 µm |
Eyepiece Tube Diameter: |
30mm |
Eyepiece Tube Depth: |
90mm |
Optical System: |
Stereo Zoom (Galilean) |
Country/Region of Manufacture: |
Germany |
Form Factor: |
Binocular Head with Stand Mount |
Compatible With: |
Zeiss Stemi SV 11 Stereo Microscope System |
Seller Notes: |
Includes head (PN 455056), Achromat S 1.0x objective (PN 455060), and two eyepiece extension tubes. Zoom knob damaged; back plate missing. |
Condition Notes: |
Zeiss Stemi SV 11 microscope head: zoom knob damaged (cracked outer shell), rear back plate missing. Seller documents the unit as functional despite these defects. Shows normal lab wear. Review photos carefully before purchasing. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |