Here's the high-quality, economical way to expand a lens' angle of view when the shot requires a zoom as well.
The .8x Wide Converter attaches quickly to the front of a zoom lens, effectively shortening its focal length while maintaining full zoom capabilities. Attach the .8x to the front of a lens for 20% more coverage when set to wide angle, telephoto or anywhere in between. For example, when added to an 8.5-119mm lens, the .8x Wide Converter alters the focal range to 7-98mm. This can be especially advantageous when shooting in confined quarters.
The .8x not only expands field of view, but also reduces minimum object distance (MOD). The camera can therefore move considerably closer to the subject while maintaining focus. Because there is no light loss with the .8x Wide Converter, there is no need to change exposure or lighting.