Brunel Microscopes Ltd

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

find us on youtube, facebook and twitter

x20 LWD phase objective                      SP99I-01


Digital SLRcamera adapter                    SP99I-06


x40 LWD phase objective                     SP99I-02j


T2 ring  for SP99I-06                             SP99I-07


x10 micrometer eyepiece                     SP99I-03


Spare 6v 30watt lamp                           SP99I-08


X60 LWD plan objective                        SP99I-04


CCTV camera C mount                         SP99I-09


Stage micrometer                                SP99I-05


Brunel SP99I Inverted Microscope Accessories

The Brunel SP99I series has a range of accessories including additional phase sets (x20 & x40), micrometer eyepiece and stage micrometer, 35mm SLR  digital camera and CCTV adapters allowing full video facilities.


Applications in tissue culture and microbiology

Brunel SP99I Microscope SP95I Inverted Biological Microscope SP95M Inverted metallurgical microscope Inverted fluorescence microscope SP300 Fluorescence

Brunel SP99I Inverted Microscope

Brunel SP99I mechanical stage

Brunel SP99I camera port

Brunel SP99I lighting and Zernicke condenser

Long working distance objectives (in red supplied as standard)













x10 phase



x20 phase



x40 phase



The Brunel SP99I is our ‘flag ship’ inverted biological microscope. What stands this apart from other biological inverted microscopes is the UIS optical system that uses high quality infinity objectives.. The SP99I can take a wide array of flasks and culture bottles that have a series of appropriate stage inserts which includes one that will take standard 3 x 1” microscope slides. The mechanical stage is substantial in size and the coaxial drop down stage controls can easily be removed by loosening thumb screws to allow the examination of vessels with a larger area than the stage. The condenser system is hinged close to the stand body and can be completely removed from the stage area to allow tall flasks to be positioned.

The SP99I has a five position objective turret with long working distance bright field and phase contrast plan achromatic objectives. The x20 and x40 phase objectives are additional accessories. The standard condenser assembly incorporates  a long working distance lens system with a 50mm focal length. An ultra long working distance condenser with a working distance of 70mm is available as an optional accessory, however this is not suitable for phase contrast examination. The condenser incorporates a Zernicke phase contrast ring system  that accepts all magnification phase objectives. It has an independent centring system. This can be centred independently of the main condenser centring. The stage measures 227 x 208mm and has a moveable range of 77 x 114 mm. Three culture dish holders are supplied to suit the more common vessels. The low position coarse and fine focus controls  are coaxial and includes a tension adjustment system and a variable focus stop arrangement that can control the maximum position of the objective turret.

The microscope head is binocular with a push/pull lever to allow light to the camera port which is situated on one side of the microscope base stand.. The binocular eyetubes have an adjustable interpupillary distance between 53 and 75mm, and one eyetube as dioptric focus control. The lighting system is quartz halogen 6 volt 30 watt, with an on/off switch and rheostat control on the right hand edge of the stand base.

Price Brunel SP99I - £2062.50 + vat

Inverted & Fluorescence Microscopes

Brunel SP300F

Brunel SP99F

Inverted fluorescence microscope

Brunel SP105F

SP105 Fluorescence

Brunel SP95I

Brunel SP98I

Locating slot

Circular dish size

Culture dish holder 1

86 x 129.5mm


Culture dish holder 2

34 x 77.5mm


Culture dish holder 3

57 x 82mm

3 x 1 slide slot

CoolLED Light Units

Used Contact Us

Online Shop


Brunel RX30F

Brunel RX50


UV Dino-Lite Handheld

Paint Fluorescence