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Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
abstract group of raw sweet japanese potatoes
ascaris megalocephala cross section under the microscope showing an ovary - optical microscope x200 magnification
plant Tilia Stem C.S. under light mircoscope with white background
Dinophysis algae under microscopic view, Chromista, diatoms, phytoplankton, fossils, silica, golden yellow algae
Micro world
Radish root, cross section under the light microscope. Traverse section through the root of the Raphanus sativus plant. Light micrograph at 8X magnification. Isolated, on white Background.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Leaves and flowers of the Chilean endemic, evergreen shrub called Vautro (Baccharis macraei), growing on sand dunes close to the ocean near Santo Domingo in central Chile. The species has succulent leaves and is adapted to very low water requirements.
Spore bags of helminthosporium contain 8 cells. This disease causes helminthosporiosis of wheat. Soon very small and quite harmful.
House Fly Leg W.M. under light mircoscope with white background
Protozoa and Green Algae in waste water under the microscope.
In vitro bacterial culture
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Insect bitten leaf - negative image technique.
linden stem (Tilia platyphyllos) cross section under the microscope showing phloem, vascular cambium, medullary ray and pith - optical microscope x32 magnification
view of vegetal cells through a 1000x microscope lens
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens.  Depth of focus is extremely shallow (just a few microns).  Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Pupa of vinegar fly, fruit fly (Drosophila, Drosophilidae).
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Amphora sp. algae under microscopic view pattern, Diatoms, phytoplankton, fossils, silica, golden yellow algae
Plant tissue, photo taken in the laboratory under a microscope
amazing inhabitants of the microworld under a microscope
chinese medicine umbellate pore fungus on black background
Micrograph of from top left onion, cotton, vicia, bamboo, corn; tilia, cucurbita, helianthus, lily, lily; pine, mulberry, pine leaf, silver berry, spyrogira; stoma, moss, corn root, onion root, leaf
Shell series: sea shells in various colors
Photomicrograph of Euglena species. Fresh water, California. Live specimen. Wet mount, 40X objective, transmitted bright field illumination.
marine green algae under the microscope - optical microscope x100 magnification
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