 As with all 9xx series, the lens movement during focusing and zooming was all internal, resulting in superior weather and dust resistance.The 950 shared with other 9xx series cameras the 28 mm filter threads and shared numerous Nikon and 3rd-party filters and diopter filters.The 950, like all 9xx series Coolpix cameras, are still used as inexpensive microscopy cameras, primarily due to the exceptional macro capabilities.