Carl Zeiss 5116340 10x/0.2 Objective 0.15 WD w/ Olympus WHK 10X/20 L Eyepiece

Carl Zeiss 5116340 10x/0.2 Objective 0.15 WD w/ Olympus WHK 10X/20 L Eyepiece

This is a Carl Zeiss 5116340 infinity-corrected microscope objective (10x magnification, NA 0.2, 0.15 mm working distance, ∞/1.5 tube length) paired with an Olympus WHK 10X/20 L wide-field eyepiece, both mounted in a custom black anodized aluminum optical housing with an integrated mounting bracket. The assembly appears designed for integration into a custom optical inspection or imaging system rather than a standard upright microscope body.

Specifications & What's Included

• Objective brand: Carl Zeiss (West Germany)
• Objective part number: 5116340
• Objective magnification: 10x
• Numerical aperture (NA): 0.2
• Working distance: 0.15 mm
• Tube length / correction: Infinity-corrected (∞/1.5)
• Objective thread: RMS (Royal Microscopical Society) standard
• Eyepiece brand: Olympus (Japan)
• Eyepiece model: WHK 10X/20 L
• Eyepiece magnification: 10x
• Eyepiece field number: 20
• Housing: Custom black anodized aluminum optical mount with side-entry bracket and base mounting plate
• Overall assembly: objective threaded into bottom of housing, eyepiece fitted to top of tube extending from housing

Applications

Carl Zeiss infinity-corrected objectives from West Germany date from the era prior to the Carl Zeiss Jena / Carl Zeiss Oberkochen reunification and were manufactured to very high optical tolerances. The 5116340 is a standard RMS-thread plan or semi-plan class 10x objective designed for use in compound microscopy, machine vision systems, and custom optical assemblies. Infinity-corrected optics allow optical elements such as filters, beamsplitters, and polarizers to be placed in the collimated beam path between the objective and tube lens without introducing aberrations — making them especially well-suited to custom inspection stations, semiconductor wafer review systems, and research imaging rigs. The Olympus WHK 10X/20 L is a wide-field high-eyepoint (L = long eye relief) eyepiece offering a 20 mm field number, commonly used in clinical and research microscopy where operator comfort over extended sessions is important. The combination of a Zeiss objective and Olympus eyepiece in a custom mount suggests this assembly was part of a specialized inline or off-axis inspection or metrology system. Both RMS-threaded Zeiss objectives and Olympus WHK eyepieces remain in active use in research labs, quality control stations, and legacy instrument refurbishment.