Description
Microscope condenser KERN OBB-A1398 is a phase-contrast (PH) condenser of Abbe type with a numerical aperture of 1,25. Pre-centred for convenient mounting, it is intended for both brightfield and phase-contrast observation on compatible laboratory microscopes. The unit is supplied as one piece with a net weight of 0,30 kg and a gross weight of 0,80 kg, giving a compact accessory footprint for optical workstations. Abbe condensers with N.A. 1,25 are widely used to control illumination and improve contrast when examining low-contrast or unstained specimens under transmitted light. From manufacturer Kern, the OBB-A1398 supports dual-mode work so operators can move between conventional brightfield imaging and phase contrast without exchanging the full condenser assembly. Pre-centring helps limit lengthy realignment after installation, which is useful in teaching laboratories and routine analytical settings. As microscopy accessory equipment, this PH condenser contributes to clear, high-contrast visualisation in life-science, materials and educational microscopy. Packaged as a single unit, it is ready for integration into systems that accept the corresponding condenser mount and related phase-contrast components for professional laboratory instrumentation.
This article is part of Microscope objectives, eyepieces & optics, in Microscopy & histology.
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Questions about Microscope condenser KERN OBB-A1398
What is this article?
Microscope condenser KERN OBB-A1398 is the article on this page. Luminix Health distributes Kern for laboratory use. It sits in Microscope objectives, eyepieces & optics, inside Microscopy & histology, in Lab instruments.
An objective makes the resolution. Magnification and numerical aperture are the two numbers, and the tube length or the infinity correction has to match the microscope. An eyepiece mostly enlarges the image the objective already resolved. A mismatched objective does not become sharper by zooming.
A light microscope forms an image with glass lenses and transmitted or reflected light. A stereo microscope is the lower-magnification instrument for dissecting and for looking at a surface. Fluorescence needs a light source and filters matched to the dye. Histology is the preparation that makes a tissue readable: fixation, a cassette, a section, a stain. The objective's magnification and numerical aperture decide the resolution. The slide and the cover glass decide whether the section sits in the focal plane. Stains and dyes as substances are identified on PubChem. Papers on the methods are on PubMed.
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The category is Microscopy & histology. The sub-category is Microscope objectives, eyepieces & optics. The catalogue is Lab instruments.
Shelves beside this one are Microscope slides & cover glasses, Histology cassettes & moulds, Counting chambers & haemocytometers, Stereo microscopes, Light & fluorescence microscopes, Histology reagents & consumables, Microscopy accessories, Cold light sources & lighting and Digital & USB microscopes.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

