NOTE : Colored rings are special order. Please allow an additional seven (7) days to process & ship. The Pan Retinal 2.2 uniquely combines magnification nearly that of the 20D lens with a field of view approaching that of the 30D lens. Excellent for virtually every examination procedure, including small pupil examinations. Specifications   Field of View 56°/73° Image Mag. 2.68x Laser Spot Mag. 0.37x Working Distance 40 mm Lens Demonstration - Move your mouse over image to control - Requires free FLASH Plug-in (Click here to download if image does not appear)