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BM 900

Reliable optics – enduring performance

The BM 900 has been the standard in modern slit lamp microscopy for more than 55 years. Over 100,000 professionals all over the world who own a BM 900 agree that it was the best investment they ever made for their practice.

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The standard in slit lamp microscopy

A firm favourite with ophthalmic professionals, this classic slit lamp comes equipped with a Kepler microscope, providing standard magnifications of 10x and 16x and boasts a sharp and homogenous slit illumination. The high-quality design, materials and construction of the BM 900 guarantee smooth, effortless movement for the lifetime of the slit lamp.

Classic and reliable optics

Equipped with a Kepler microscope, the BM 900 provides standard magnifications of 10 × and 16 ×. With a set of optional oculars it can be extended to 25 × and 40 × magnification. Like any other Haag-Streit slit lamp, the BM 900 features the best optical components to show all structures of the human eye in every detail.

Sharpest and homogeneous slit

Over the last years, LED illumination has become standard in modern slit lamp microscopy. It delivers our sharpest and most homogeneous slit ever. A tilting frame allows good posterior segment observation, while the defocusing option enhances observation with indirect illumination. All filter and slit controls are conveniently situated for ease of use and, as with the cross slide mechanism, have a silky smooth, effortless movement.

Technical Specifications

Illumination

Light-source: LED
Slit width: 0 – 8 mm continuous
Slit length: 1 – 8 mm continuous
Illumination field diameter: ø 8, 5, 3, 2, 1, 0.2 mm, Test mark with fixation star
Slit image rotatability: ± 90°
Swiveling of the slit illumination to the microscope axis: Horizontal ± 90°, vertical 0 – 20°
Filters: Blue, red-free (green), grey (10 %)

Microscope

Stereo angle: 13°
Magnification changer: 1 x and 1.6 x
Magnification with ocular 10x (standard): 10 x and 16 x
Magnification with ocular: 25x 25 x and 40 x
Range of adjusting eye-pieces: +8 to -8 diopters
Inter pupillary distance: 54 – 94 mm

Instrument base

Operation: Single handed 3-dimensional operation of the control lever
Spatial adjustment of the instrument base: 100 mm (length), 100mm (side), 30mm (height)
Power supply: Haag-Streit PS LED 100 – 240 V mains voltage, 50 – 60 Hz operating frequency
Working temperature: 10° to 35° C
Measures (W x L x H): 312 mm x 305 mm x 700 mm
Net weight: 11.4 kg (without power supply, head rest and options)

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