FC Focus Block/Holder
Focus holder with coaxial coarse and fine focus for high magnification applications where precise fine focus adjustment is required. Rack and pinion mount allows smooth, precise focusing over 33mm of travel.
Coarse and fine focus mechanism incorporates a slip clutch and tension adjustment. Fits 20mm diameter, 82mm long mounting post (FC11 adapter is required for mounting to the 71mm long posts on our S-4100, S-4200, and S-4500 stands). The 84.2mm diameter opening accepts all EM Series stereo bodies.
Focusing holders hold the microscope body and contain the mechanism that raises or lowers the body to focus on the specimen. Complete stands include their own focusing holders. But for other kinds of tasks, however, it may be necessary to mount the microscope body on a boom arm stand or directly onto a machine or some other surface. The focusing holders below offer a range of options for such applications.