Stereomicroscopes

Another of the classic British stereos with a very characteristic shape and paint finish. This model has standard 23mm eyetubes with original wide field eyepieces. The characteristic rotating turret has a x1.4 and x4 objective set giving overall magnification options of x14 and x40. The microscope has inbuilt tungsten transmitted lighting (but no incident light unit). This is now probably a collector's item although still optically fine.

In very good condition for its age this is both a perfectly functional microscope as well as becoming something of a collector's piece. Complete with its original case with the Watson motif. It has three objectives mounted on a rotating turret which was the classic Watson design with x2.5, x5 and x10 magnifications. When used with the x10 eyepieces this gives options of x25, x50 and x100. It has a rack and pinion focus system with stage clips and a reversible black/white dissection plate. For those relatively high stereo magnifications it would need some external lighting of some sort. One of the classics.

This is a Gemscope based on the Apex Explorer stereomicroscope and is unused. Finished in black enamel to minimise reflections and with both incident and reflected halogen lighting which is brightness controlled. Magnification options are x20 and x40 that are selected by rotating the stereo head. Complete with a gem clamp and dark ground attachment. Rack and pinion focusing.

This is a modern Leica zoom stereomicroscope on a substantial long arm system. It is all original and in good condition throughout. x10 super wide field eyepieces with independent focus control. The magnification zoom range is from x6.3 to x40 via two side arm controls. The head is binocular and in good condition. The stand is substantial in size but not overly heavy because the central pole is hollow. The interlocking of the two parallel arms is excellent and gives the unit great stability.

This particular BSR is a click stop version. Usually zoom stereomicroscopes achieve their magnification change by physically lengthening and shortening the objective lenses (rather like a pirates telescope). The alternative to this is to have a series of different magnification objectives on a drum arrangement in the head (hence the name). Instead of the side controls producing a zoom, in this case they 'click' a different pair of objectives into the optical path. This means a series of fixed magnifications but the resolution is slightly better because of it. The stereohead has exceptional wide field x10 eyepieces with 5 pairs of objective lenses - x0.55, x1,x1.75, x3 and x5.5. The overall magnification options are therefore x5.5, x10, x17.5, x30 and x55. The stand has pole coarse focus and rack and pinion fine focus. With LED incident and transmitted lighting that has brightness control and can be used independently or together. Condition as new and fully guaranteed.

This is a new microscope and fully guaranteed. Excellent value for those on a restricted budget who are looking for the benefit of zoom stereomicroscopy. The binocular head has extra wide field eyepieces with eyecups and a continuous zoom magnification range of x7 to x45. The plain stand without inbuilt illumination is rack and pinion throughout its length with a very stable rectangular base with clips and a dissection plate.