For deeper brain regions (150 µm to 8 mm depth) use the Snap-in Imaging Cannula Model L with image guiding gradient-index rod lens that brings the image from inside the brain to the skull surface. Snap-in Imaging Cannulas are compatible with all Fluorescence Microscope Bodies of the corresponding model.
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As the choice of these lenses is quite limited, different depth ranges of brain tissue are accessed with different lens lengths while fine focusing is done with the protrusion adjustment ring that comes with each cannula. As cannulas might be re-used it is advisable to get a set of these rings as spare parts. The working distance of D, V and E imaging cannulas is 80 µm.
Note: Each Standard Imaging Cannula Model L is provided with one of each of the five designs of Protrusion Adjustment Rings Model L. If more rings are needed, a set can be purchased separately (PARS_L).
The Basic Snap-in Fluorescence Microscope Body is offered in two models: S or L. Both models have the dichroic beam-splitter, M3 optical connector, CMOS sensor etc. Each CMOS has a serial number stored within its cable that points to a specific set of mask correction filters recognizable to our software package.
The Optogenetically Synchronized Fluorescence Microscope or OSFM, combines fluorescence imaging and optogenetic stimulation/inhibition capabilities within the miniature fluorescence microscope.
As the point of observation can be anywhere within the brain, a set of protrusion adjustment rings of different heights is available.
The 2-color fluorescence microscope body combines two CMOS sensors for simultaneous imaging of two different fluorophores.