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 10 mm | At 13 mm | At 18 mm | Equiv. aperture (DoF) |
|---|---|---|---|---|
| APS-C | 15 mm · 109° | 20 mm · 95° | 27 mm · 76° | f/6.8 |
| APS-C (Canon) | 16 mm · 107° | 21 mm · 92° | 29 mm · 73° | f/7.2 |
| Micro Four Thirds | 20 mm · 95° | 26 mm · 80° | 36 mm · 62° | f/9.0 |
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: 14 mm f/5.6 on aps-c.
| Focal | Aperture | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal | Blur @2 m |
|---|---|---|---|---|---|---|---|
| 10 mm | f/4.5 | 7.24 m | ∞ | ∞ | ∞ | 1.15 m | 0.0% |
| 10 mm | f/8 | ∞ | ∞ | ∞ | ∞ | 64.9 cm | 0.0% |
| 13 mm | f/4.5 | 1.40 m | ∞ | ∞ | ∞ | 1.93 m | 0.1% |
| 13 mm | f/8 | 11.1 m | ∞ | ∞ | ∞ | 1.09 m | 0.0% |
| 18 mm | f/4.5 | 57.4 cm | 3.03 m | ∞ | ∞ | 3.70 m | 0.2% |
| 18 mm | f/8 | 1.22 m | 45.6 m | ∞ | ∞ | 2.09 m | 0.1% |
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 10 mm | NPF at 10 mm, f/4.5 |
|---|---|---|---|
| APS-C | 1/25 s | 33 s | 27 s |
| APS-C (Canon) | 1/30 s | 31 s | 27 s |
| Micro Four Thirds | 1/40 s | 25 s | 26 s |
Compatible cameras#
Bodies in our database with a native Canon RF mount. Full-frame bodies switch to an APS-C crop with this lens.
- Canon EOS R6 Mark III crop mode
- Canon EOS C50 crop mode
- Canon EOS R50 V 2025
- Canon EOS R5 Mark II crop mode
- Canon EOS R1 crop mode
- Canon EOS R100 2023
- Canon EOS R50 2023
- Canon EOS R8 crop mode
- Canon EOS R10 2022
- Canon EOS R6 Mark II crop mode
- Canon EOS R7 2022
- Canon EOS R3 crop mode
- Canon EOS R5 crop mode
- Canon EOS R6 crop mode
- Canon EOS RP crop mode
- Canon EOS R crop mode
- Canon EOS R5 C crop mode
- Canon EOS R6 V crop mode
- Canon EOS R8 Mark II crop mode
Adapt it to other systems#
Similar lenses#
Frequently asked questions#
Is the Canon RF-S 10-18mm F4.5-6.3 IS STM full frame?
No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.
What is the Canon RF-S 10-18mm F4.5-6.3 IS STM equivalent to on APS-C?
Its focal length is already the real value for APS-C: 10–18 mm frames like 15–28 mm on full frame.
What is the Canon RF-S 10-18mm F4.5-6.3 IS STM good for?
As a wide-angle zoom it suits landscapes, architecture, interiors and astrophotography.
Sources & licences#
- Lensfun lens database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources