Long Reach, Compact Design
Distinct among super-telephoto lenses, this 400mm f/4.5 is especially sleek and lightweight, making it an ideal companion for travel or other shooting scenarios where handheld shooting is preferred.
- Sophisticated optical design includes a series of specialized elements that promote a lighter, more compact overall design.
- Modest f/4.5 maximum aperture offers a practical balance between size, speed, and weight.
- With a size more akin to a 70-200mm f/2.8, this lens measures just 9.2" long and weighs 2.7 lb. Compared to the Z 400mm f/2.8 lens, this f/4.5 version weighs 3.8 lb less and measures 6" shorter in length.
S-Line Optics
- Helping to virtually eliminate chromatic aberrations, color fringing, and comatic aberrations, this lens features one ED (extra-low dispersion) glass element and two Super ED elements, along with one SR (short-wavelength refractive) element.
- The SR element features a specialized high-dispersion design that refracts wavelengths shorter than blue; this helps achieve truly accurate color rendering and also aids in making the lens design more compact.
- Nano Crystal Coat has been applied for well-rounded anti-glare protection at all angles, helping to suppress ghosting, reflections, and flare for higher contrast and more accurate color response when working in strong lighting and backlit conditions.
Autofocus and Vibration Reduction
- Advanced autofocus system uses stepping motors to deliver quick and accurate focusing performance, along with smooth and quiet AF that is well-suited to both stills and video applications.
- Full-time manual focus override is also possible and an internal focusing design is used, where only the internal lens groups are moved during focusing, to maintain the overall length of the lens during use and to promote faster focusing speeds.