Quick answer
The Nikon Nikkor GN 45mm f/2.8 AI-S is a standard prime lens covering 45mm at f/2.8 for the Nikon F mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
A 45mm f/2.8 standard prime lens, the Nikon Nikkor GN 45mm f/2.8 AI-S is designed for Nikon F mount bodies. The natural field of view suits street, documentary and everyday photography.
Nikon Nikkor GN 45mm f/2.8 AI-S specifications
What can you shoot with the Nikon Nikkor GN 45mm f/2.8 AI-S?
At 45mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its bright maximum aperture handles indoor and evening light reasonably well.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 45mm | 43.6° | 51.4° |
| APS-C | 1.5x | 68mm | 29.9° | 35.5° |
Frequently asked questions
What mount does the Nikon Nikkor GN 45mm f/2.8 AI-S use?
It uses the Nikon F mount, so it fits Nikon F cameras directly.
What is the focal length of the Nikon Nikkor GN 45mm f/2.8 AI-S?
It is a fixed 45mm lens with a maximum aperture of f/2.8. That makes it a standard lens.
Is the Nikon Nikkor GN 45mm f/2.8 AI-S a prime or a zoom lens?
It is a prime lens with a fixed 45mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.
What is the Nikon Nikkor GN 45mm f/2.8 AI-S equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 68mm on full frame, with a 29.9° horizontal and 35.5° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Nikon Nikkor GN 45mm f/2.8 AI-S fit?
Any Nikon F-mount camera, including Nikon D3, Nikon D300, Nikon D3000, Nikon D300S, and Nikon D3100 and 35 more.
Alternatives for Nikon F from other brands
All Nikon F lensesSame mount, overlapping focal range, closest maximum aperture first.
