Shadow-free coaxial light C-mount lens Long working distance Sharp images over a super wide field view Large Metal stand and framework 0.63X-3.5X zoom objective ( about 62 - 400X on the display( CCD/COMS Size: 1/3 ", display Size: 20 ") Coaxial C-mount Lens Specification: Zoom microscope objective: 0.63X-3.5X Mount: C-mount for PC or TV camera connection (camera sold separately) Working distance: 9.3mm-10mm Field of view: 1mm-6.5mm Illumination: coaxial light Light Power input: 110 - 240V, 50 - 60HZ, auto switching Pillar: 260mm long