Haag Streit BM 900 Slit Lamp   The Original Slit Lamp BM 900 The Haag-Streit BM 900 has been the standard in modern slit lamp microscopy for almost 50 years – and still is! 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. The BM 900 is the “classic” slit lamp for the general ophthalmologist concerned with both the anterior and posterior segments. Minus preset lenses with mocable fixture for examination with up to 60% Minus preset lenses with pre-centered fixture Plus preset lenses for fundus examinations in highly myopic patients Wide eyepiece selections Upgrade modules Specifications Slit lamp illuminator Slit image width 0 - 8 mm continuous Slit image length 1 - 8 mm continuous Illumination field diameter 8, 5, 3, 2, 1, 0.2 mm Test mark with fixation star Slit image radial range ± 90° Radial movement of the slit light illumination relative to the microscope axis horizontal ± 90°, vertical 0 - 20° Filters blue, redfree (green), grey (10 %), UV and IR filters permanently installed Light source Tungsten incandescent light bulb 6 V / 4.5 A Illumination intensity 150 000 Lux at position 1/2 300 000 Lux at position 1 600 000 Lux at position 2     Stereo-microscope   Magnification changer 1x and 1.6x Range of adjusting eye-pieces + 8 to -8 diopters (with 10 x eye-pieces) Inter pupillary distance 54 - 94 mm     Instrument base   Operation Single handed 3-dimensional operation of the guide lever Adjustment of the instrument base 80 mm (length), 30 mm (height), 100 mm (side) Weight 11.40 kg (without transformer and headrest)