A useful product in eye examination is the SL-2G slit lamp. It provides a very efficient output for optometrists making them trust the Topcon quality on their slit lamp range. This features blue and red-free filters, with magnifications of 10x16x25. The illuminating capacity of the LED lights are 100 times longer than conventional halogen bulbs with an approximate life time of 10 hours. This model is one of the most economical for the Topcon units. Optional specifications include Topcon parallel binocular tube, Topcon fundus viewer, and the Goldmann tonometers.