This is a highly-flexible stereo microscope, designed for workshops and industrial inspection. Featuring a simul-focal head, the photo port can be used concurrent with both eyepieces, allowing you to have an active imaging system without losing use of one of the eyepieces. The objective optics offer a contiuous zoom-range from 0.7 to 4.5X, providing 7-45X magnification with the 10X high-eyepoint, super-widefield eyepieces. This model also provides a zoom lock to maintain a fixed magnification for calibrated measurement applications. The nosecone provides a built-in ring-light adapter, as well as inner threading for auxiliary lenses and other attachments.