Welch Allyn's newest and top of the line ophthalmoscope. This instrument features 68 lenses from -30D to +38D! Precise bulb filament and optical alignment enable maximum coaxial viewing for enhanced visibility and uniform illumination. The 11735 Ophthalmoscope has a separate switch for Neutral Density, Opacity, and Red-Free Filter, which provides up to 18 aperture combinations. Standard apertures include: Micro-Spot, which allows quick entry in small, undialated pupils; Small Aperture, Large Aperture, Fixation Aperture, Slit, and Cobalt Blue fiter. Welch Allyn HPX Hallogen illumination with Opacity setting provides the brightest light for easy entry into eyes with cataract or other media opacity. The 11735 is pictured here with 71000C power handle (not included) which can be recharged by plugging it into a wall outlet, or can be used with 2 standard C-Cell batteries.