Specifications#
Equivalent focal length on different cameras#
Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).
| Camera format | At 18 mm | At 50 mm | At 140 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| APS-C | 27 mm · 76° | 75 mm · 32° | 210 mm · 12° | f/5.2 |
| APS-C (Canon) | 29 mm · 73° | 80 mm · 30° | 224 mm · 11° | f/5.6 |
| Micro Four Thirds | 36 mm · 62° | 100 mm · 24° | 280 mm · 9° | f/7.0 |
Depth of field & background blur#
Computed on its native APS-C format (CoC 20 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 20 mm f/4 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 18 mm | f/3.5 | 43.4 cm | 2.03 m | ∞ | ∞ | 4.75 m | 0.2% |
| 18 mm | f/4 | 50.2 cm | 2.48 m | ∞ | ∞ | 4.16 m | 0.2% |
| 18 mm | f/8 | 1.22 m | 45.6 m | ∞ | ∞ | 2.09 m | 0.1% |
| 50 mm | f/3.5 | 5.2 cm | 21.4 cm | 1.38 m | 5.89 m | 36.6 m | 1.6% |
| 50 mm | f/4 | 6.0 cm | 24.5 cm | 1.59 m | 6.90 m | 32.0 m | 1.4% |
| 50 mm | f/8 | 11.9 cm | 49.6 cm | 3.43 m | 20.3 m | 16.0 m | 0.7% |
| 140 mm | f/3.5 | 0.6 cm | 2.6 cm | 17.0 cm | 69.0 cm | 286 m | 12.8% |
| 140 mm | f/4 | 0.7 cm | 3.0 cm | 19.4 cm | 78.8 cm | 251 m | 11.2% |
| 140 mm | f/8 | 1.4 cm | 5.9 cm | 38.9 cm | 1.58 m | 125 m | 5.6% |
Handheld & night-sky limits#
NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).
| Body | Min. handheld shutter (longest focal) | 500 rule at 18 mm | NPF at 18 mm, f/3.5 |
|---|---|---|---|
| APS-C | 1/200 s | 19 s | 13 s |
| APS-C (Canon) | 1/250 s | 17 s | 13 s |
| Micro Four Thirds | 1/250 s | 14 s | 12 s |
Compatible cameras#
Bodies in our database with a native Nikon Z mount. Full-frame bodies switch to an APS-C crop with this lens.
- Nikon Z5II crop mode
- Nikon ZR crop mode
- Nikon Z50II 2024
- Nikon Z6III crop mode
- Nikon Z8 crop mode
- Nikon Zf crop mode
- Nikon Z30 2022
- Nikon Z9 crop mode
- Nikon Zfc 2021
- Nikon Z5 crop mode
- Nikon Z7II crop mode
- Nikon Z6II crop mode
- Nikon Z50 2019
- Nikon Z6 crop mode
- Nikon Z7 crop mode
- Nikon Z5IIC crop mode
Adapt it to other systems#
Similar lenses#
Frequently asked questions#
Is the Nikon Nikkor Z DX 18-140mm f/3.5-6.3 VR full frame?
No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.
What is the Nikon Nikkor Z DX 18-140mm f/3.5-6.3 VR equivalent to on APS-C?
Its focal length is already the real value for APS-C: 18–140 mm frames like 28–215 mm on full frame.
What is the Nikon Nikkor Z DX 18-140mm f/3.5-6.3 VR good for?
As a superzoom it suits travel photography with one lens from wide to telephoto.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources