Description
Zeiss Ultrafluar 10x/0.20 ∞/0.20 Qu Objective Lens
Rare Deep-UV to NIR Quartz Optics | Infinity Color Corrected System (ICS)
Overview
Up for sale is a pre-owned Zeiss Ultrafluar 10x/0.20 infinity-corrected objective lens. Built with premium quartz optical elements, the renowned Ultrafluar series is engineered specifically for demanding ultraviolet (UV), fluorescence, and broadband spectroscopic imaging applications.
Unlike standard optical glass objectives that absorb UV wavelengths, this Ultrafluar lens delivers high, exceptionally flat transmittance (>70–80%) spanning from 240 nm (Deep UV) through the visible spectrum up to the Near-Infrared (NIR, 1100+ nm).
Key Features
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Ultra-Broadband Spectral Transmission: Fully crafted with precision quartz optics, offering flat, high transmission from 240 nm deep-UV all the way into the infrared spectrum.
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Outstanding UV & Fluorescence Performance: Rated 5-stars for ultraviolet transmission and confocal UV imaging; ideal for UV laser coupling, autofluorescence, and material characterization.
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ICS Infinity Optical System: Compatible with Zeiss ICS tube lenses and standard research-grade microscope setups.
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Generous Working Distance: 7.4 mm free working distance (FWD) for safe, flexible sample manipulation.
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Industry Standard RMS Mount: Standard DIN RMS thread (W0.8" x 1/36") with 45 mm parfocal length.
Technical Specifications
| Specification |
Value |
| Manufacturer |
Carl Zeiss |
| Model Class |
Ultrafluar |
| Magnification |
10x |
| Numerical Aperture (NA) |
0.20 |
| Optical System |
Infinity Color Corrected System (ICS, ∞) |
| Free Working Distance (FWD) |
7.4 mm |
| Cover Glass Correction |
0.20 mm Quartz Cover Glass (0.20 Qu) |
| Mount / Thread |
RMS (W0.8" x 1/36", DIN 58888) |
| Parfocal Distance |
45.06 mm |
| Field of View (FOV) |
20 mm |
| Immersion |
Dry / None (Air) |
| Spectral Range |
240 nm (Deep UV) – 1150+ nm (NIR) |
| Primary Applications |
UV Microscopy, Confocal (UV/VIS), Fluorescence, Brightfield |
Optical Condition: Used, [Excellent / Clean] — Glass surfaces are free of scratches, haze, fungus, or delamination. Coatings/surfaces are well-preserved.
