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 40 mm | Equiv. aperture (DoF) |
|---|---|---|
| Full frame | 40 mm · 57° | f/2.0 |
| APS-C | 60 mm · 39° | f/3.0 |
| APS-C (Canon) | 64 mm · 37° | f/3.2 |
| Micro Four Thirds | 80 mm · 30° | f/4.0 |
Depth of field & background blur#
Computed on its native Full frame format (CoC 30 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: 40 mm f/2 on full frame.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 40 mm | f/2 | 7.2 cm | 29.6 cm | 1.93 m | 8.68 m | 26.7 m | 1.1% |
| 40 mm | f/4 | 14.5 cm | 60.1 cm | 4.32 m | 33.8 m | 13.4 m | 0.6% |
| 40 mm | f/8 | 29.4 cm | 1.29 m | 16.7 m | ∞ | 6.71 m | 0.3% |
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 40 mm | NPF at 40 mm, f/2 |
|---|---|---|---|
| Full frame | 1/40 s | 12 s | 6 s |
| APS-C | 1/60 s | 8 s | 5 s |
| APS-C (Canon) | 1/60 s | 8 s | 5 s |
| Micro Four Thirds | 1/80 s | 6 s | 4 s |
Compatible cameras#
Bodies in our database with a native L-Mount mount.
- Panasonic Lumix DC-S1M2 2025
- Sigma BF 2025
- Panasonic Lumix S1IIE 2025
- Panasonic Lumix S1RII 2025
- Panasonic Lumix DC-S9 2024
- Leica SL3 2024
- Panasonic Lumix DC-S5M2 2023
- Sigma fp L 2021
- Panasonic Lumix DC-S5 2020
- Sigma fp 2019
- Leica SL2 2019
- Panasonic Lumix DC-S1 2019
- Leica TL2 2017
- Leica TL 2016
- Leica SL (Typ 601) 2015
- Leica CL 1973
- Leica T (Typ 701)
- Panasonic Lumix DC-S1H
- Panasonic Lumix DC-S1R
- Leica SL2-S
- Leica SL3-P
- Leica SL3-S
- Panasonic DC-S1M2ES
- Panasonic DC-S1RM2
- Panasonic DC-S5D
Adapt it to other systems#
Similar lenses#
- Sigma 40mm F1.4 DG HSM | Art f/1.4
- Sigma 45mm F2.8 DG DN | Contemporary 019 f/2.8
- Leica APO-Summicron-SL 1:2/35 Asph. f/2
- Leica Summilux-TL 1:1.4/35 Asph. f/1.4
- Panasonic S 35mm f/1.8 f/1.8
- Sigma 35mm F2 DG DN | Contemporary 020 f/2
- Leica APO-Summicron-SL 1:2/50 Asph. f/2
- Panasonic S 50mm f/1.8 f/1.8
- Panasonic S Pro 50mm f/1.4 f/1.4
- Sigma 30mm f/1.4 DC DN f/1.4
- Sigma 65mm F2 DG DN | Contemporary 020 f/2
Frequently asked questions#
Is the Panasonic S 40mm f/2 full frame?
Yes — it covers the full 36 × 24 mm frame.
What is the Panasonic S 40mm f/2 equivalent to on APS-C?
On a 1.5× APS-C body it frames like 60 mm, and like 64 mm on Canon APS-C.
What is the Panasonic S 40mm f/2 good for?
As a standard prime it suits street, documentary, everyday and low-light shooting.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources