The Petri-viewer, designed primarily for colony counting and inhibition zone assays, includes incident, dark-field and transmitted illumination for opaque, clear and semi-opaque agars respectively.
The use of very bright cool white tubes provides unprecedented contrast between colonies and substrate. It features a monochrome CCD camera linked to an automatic lens. A high resolution CCD camera is optional for more demanding applications. Illumination and lens aperture are under complete software control enabling different configurations to be saved.
Special sample trays are included to hold Petri-dishes in place and these are easily removed for cleaning. The Petri-viewer can accommodate all sizes of Petri-dish up to 100 mm diameter, microtiter plates, culture dishes up to 100 mm square and 3M Petrifilm.