1. Flat sharp image erect and unreversed, wide field eye piece. 2. Para focal from High to Low power quick changing pair interchangeable sliding motion 3. Long working distance and large field of view. 4. Binocular tubes inclined at 45degree adjustable interpupillary distance. 5. Direct measurement on specimen with optional eye pieces. 6. Sturdy Rack and pinion for focusing 7. Interchangeable white/transparent stage plate. 8. With built-in transmitted light base with transformers. OPTIONAL: Also available with pole type stand and extension piller.