The optical design derives from the E-series 28 mm and isn't terrific by any standards. Due to its water-resistant design, the lens is stiff to focus so handling is a bit on the rough side. And of course, all Nikonos cameras lack a rangefinder so focus must be set manually. Despite these shortcomings, the LW-28 is fun to use where you would hesitate to take an ordinary camera, shooting in the surf zone is a typical example. This lens derives from a similar rangefinder 'S' design, and optically it shows its age.
Flare is low but ghosting can be an issue under adverse conditions.
Although the lens can be employed underwater, I find it best suited for in-air shooting. Underwater, the field of view is too restricted for my taste and the minimum distance of 0.8 m too long. 3.5 A small, nice lens with good optical rendition which is difficult to use underwater because of its long focal range. Focusing it can be awkward and the separate viewfinder should always be used to get proper image composition. It is susceptible to flare and ghosting is an issue that can be difficult to handle, so use your hand to shadow the lens front at all times.