The AF-S NIKKOR 20mm f/1.8G ED from Nikon is a wide-angle prime lens designed for FX-format Nikon F-mount cameras. Here are some key features and details about this lens:
Ultra Wide-Angle Prime:
Designed for FX-format Nikon F-mount cameras.
Can also be used with DX models, providing a 30mm equivalent focal length.
Bright f/1.8 maximum aperture for excellent performance in low-light conditions.
Offers increased control over depth of field, allowing for creative and selective focus.
Optical design includes two extra-low dispersion glass elements to reduce chromatic aberrations.
Two aspherical elements control spherical aberrations and distortion for sharpness and resolution.
Nano Crystal and Super Integrated coatings applied to lens elements.
Minimize surface and internal reflections, reducing lens flare and ghosting.
Improves contrast and color accuracy, especially in challenging lighting conditions.
Silent Wave Motor (SWM):
Silent Wave Motor provides fast, smooth, and quiet autofocus performance.
Full-time manual focus override allows for manual adjustments at any time.
Rear Focusing Design:
Rear focusing design moves only the rear lens group during focusing.
Maintains the overall length of the lens during use and promotes faster focusing speeds.