The Nikon Nikkor SW 90mm f/8 is a compact wide-angle large format lens with a 235mm image circle and 105-degree coverage, providing generous movements on 4x5in and covering 5x7in. At 360g with a 67mm filter thread, it is one of the most compact 90mm wide-angle options. The slower f/8 aperture results in a dimmer ground glass image but significantly reduces size and weight compared to the f/4.5 version, making it ideal for field use.