The Nikon NIKKOR 20mm f/2.8 is a manual focus, ultra-wide angle lens similar to the Nikon Micro-NIKKOR 55mm f/2.8. The sole difference that differentiates the NIKKOR 20mm f/2.8 from the Micro-NIKKOR 55mm f/2.8 is its 20mm focal length. Otherwise, the two lenses sport the same features, including a maximum aperture of 2.8 and Close Range Correction construction.
The NIKKOR 20mm f/2.8's 20mm focal length makes it ideal for extremely close range shooting especially considering its minimum focus distance is 0.85 ft. Its 2.8 maximum aperture allows the NIKKOR 20mm f/2.8 to perform well in low-light and natural light settings while also allowing for faster shutter speeds. Additionally, the NIKKOR 20mm f/2.8's Close Range Correction system utilizes a 'floating element' design, allowing it to take higher-quality images at very close ranges.
- Close Range Correction (CRC) system
- Close-up to approx. 0.85 ft (1:2 reproduction ratio)
- Focal length: 20mm
- Maximum aperture: 2.8
- Minimum aperture: 22
- Lens construction: 12 elements in 9 groups
- Compatible formats: FX, DX, FX in DX crop mode and 35mm film