The B-192-PL microscope from Optika features the exclusive X-LED2 lighting source. The special design of the lens in front of the LED gives a very high level of light intensity, whilst ensuring optimal uniformity of illumination over the whole field of view. This microscope gives an excellent image using the 100x objective with WATER! Using water instead of oil reduces the tedious cleaning of lenses. As water doesn?t attract dirt and dust the way oil does your lenses stay cleaner. Optika quote an image quality using water of up to 90% of that using oil, more than enough for most educational applications. Now with plan objective lenses.