Brunel Microscopes Ltd

Registered in U.K. (England) No: 2060047

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A full geological specification polarising microscope

Brunel SP300P Microscope

x20 eyepieces                                    SP300P-01


x100 (oil) plan objective                       SP300P-05


UniversalSLR camera adapter             SP300P-02


Stage micrometer                               SP300P-06


CCTV adapter                                    SP300P-03


Spare bulb                                         SP300P-07


x20 plan polarising objective               SP300P-04


Mechanical specimen driver                SP300P-08


Brunel SP300P Polarising Microscope Accessories

The Brunel SP300P series has a range of accessories available from our online shop.

Polarisation and Ore Microscopes

Budget Polarising microscopes SP75 Polarising SP78 Binocular Ore microscope SP350P Polarising

Brunel SP300P Polarising Microscope

Brunel SP300P graduated circular stage

Brunel SP300P swing out polariser

Brunel SP300P analysing filter

Brunel SP60P

Brunel SP75P

Brunel SP250P

Brunel SP1500XP

Brunel SP350P

The SP300P is the flagship polarising microscope in the Brunel range. Made to an exacting standard and with a very modern stand design the SP300P has a full polarising specification that makes it ideal for professional applications.  

Trinocular head with full interocular and dioptric adjustment, supplied complete with x10 widefield and crosshair eyepieces. Slider analyser filter with a remote rotating circular scale that is very easy and convenient to use. This graduated control rotates the internal analyser. Slide in Bertrand lens with lateral position adjusters to ensure centralising in the optical path for conoscopic examination. The polarising head unit houses  a filter slot to accommodate the quartz wedge, wavelength and quarter wavelength retardation plates. Quadruple objective turret with x4, x10, x40 and x60 planachromatic  long working distance, strain free polarising objectives. Three of the settings have lateral adjustment to allow the objectives to be centred in the optical path. The fourth objective (x10 recommended) is centred using the lateral adjusters of the specimen stage.

A ball bearing race rotating circular stage, with graduated chapter ring. The stage has lateral position adjusters to centre it relative to the non adjustable objective. The other objectives are then fine adjusted to centre. This a more sensitive and accurate system than having all objectives adjustable with a non moving stage. The polarising filter is in a swing out unit at the base of the condenser with 360 degree rotation with click indexing.

The SP300P has low position coaxial coarse and fine focus controls with tension adjustment and variable focus stop. The fine focus controls are graduated to facilitate depth measurement. The microscope has a full Kohler illumination system with a field lens and iris diaphragm. The rheostat controlled 6 volt 20 watt illumination system has an easy bulb change trap door in the bottom of the microscope stand.

The SP300P polarising microscope represents a breakthrough in the development of affordable professional polarising microscopes and has an extensive range of accessories including CCTV and digital camera adapters.


Price  Brunel SP300P - £2055 + vat

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