The Laowa 25mm f2.8 2x-5x Ultra Macro Lens in Nikon Z mount is an extreme close up, macro lens for the Nikon Z mount full frame mirrorless camera systems. A fully manual lens, with no electronic connections. An affordable extreme macro lens and full frame sized sensors cameras. Also great for the new Nikon Z APS-C sensor cameras. This dedicated macro lens is very compact with dimensions of only 82 x 65mm, weighs 400g, and is aaimed at macro enthusiasts. Suitable for close up work only, it offers between 2.5 and 5 times lifesize images without fuss - without the need of bellows or extension tubes. Optical design is 8 elements in 6 groups with an 8 bladed aperture offers superb image reproduction and image detail. Optimized for macro shooting between 2.5X - 5X life size and specially designed with an extended working distance (45mm at 2.5x & 40mm at 2x)and smaller lens barrel. This allows a sufficient lighting on the object for easier shooting in the field. Much more compact and lighter than other comparative products. The 25mm f2.8 ultra macro also provides a relatively greater depth of field compared to other extreme macro lenses currently available. The Laowa 25mm f/2.8 2.5-5X is developed for both professional and enthusiast macro photography, to be used in every situation. Nikon Z mount With a wide focal length of 25mm, photographers have the added bonus to shoot with deeper depth of field than when using longer focal length macro lenses. This may be especially useful when focus stacking multiple images which will require stacking of lens shots if using a wider focal length lens due to an increased depth of field.