An excellent microscope suitable for educational use, amateur interest and small scale research, the JPL1350HBG model is a binocular microscope with a transmitted light source and polarising capabilities. Great for the viewing of polarised and cross polarised materials such as geological thin sections. The binocular head with 10X eye pieces and a cross hair as well as 4 achromatic, strain-free, centerable objectives 4X, 10X, 40X. 100X. This will give you a total magnification range of 40X to 1000X. The achromatic objectives also eliminate blurring when viewing slides. As standard, a rotating centre stage is also equipped, allowing you to rotate the slide 360 degrees to best view slides and crystal reactions to cross polarised light as well as a rotatable polariser also being equipped. This microscope also uses a 6 volt, 20 Watt transmitted light source via a halogen bulb, the tension of which can also be adjusted with a coarse and fine focus and a limit stopper. All of these features provide you with an excellent microscope for a number of uses and is cost effective enough to be used by amateur microscopists, schools and colleges and hobbyists.