Canon RF 24-240mm F4-6.3 IS USM Specs & DoF

24–240 mm

Focal length

f/4–6.3

Maximum aperture

84°–10°

Diagonal angle of view (Full frame)

Full frame

Designed for

10.0×

Zoom ratio

Specifications#

Brand: Canon
Model: RF 24-240mm F4-6.3 IS USM
Lens type: Superzoom
Focal length: 24–240 mm
Maximum aperture: f/4–6.3
Image circle: Full frame (36×24 mm)
Mount(s): Canon RF
Projection: Rectilinear
Stabilisation: Yes (optical)
Autofocus motor: ultrasonic (USM)
Lensfun correction profile: Yes — distortion/vignetting/TCA

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 24 mm	At 76 mm	At 240 mm	Equiv. aperture (DoF)
Full frame	24 mm · 84°	76 mm · 32°	240 mm · 10°	f/4.0
APS-C	36 mm · 61°	114 mm · 21°	360 mm · 7°	f/6.0
APS-C (Canon)	38 mm · 58°	122 mm · 20°	384 mm · 6°	f/6.4
Micro Four Thirds	48 mm · 49°	152 mm · 16°	480 mm · 5°	f/8.0

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: 24 mm f/4 on full frame.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
24 mm	f/4	42.4 cm	1.98 m	∞	∞	4.82 m	0.2%
24 mm	f/8	97.4 cm	10.2 m	∞	∞	2.42 m	0.1%
76 mm	f/4	3.8 cm	16.0 cm	1.03 m	4.31 m	48.2 m	2.1%
76 mm	f/8	7.7 cm	32.2 cm	2.14 m	9.94 m	24.1 m	1.0%
240 mm	f/4	0.3 cm	1.5 cm	9.9 cm	40.7 cm	480 m	22.7%
240 mm	f/8	0.6 cm	2.9 cm	19.8 cm	81.5 cm	240 m	11.4%

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 24 mm	NPF at 24 mm, f/4
Full frame	1/250 s	21 s	13 s
APS-C	1/400 s	14 s	11 s
APS-C (Canon)	1/400 s	13 s	10 s
Micro Four Thirds	1/500 s	10 s	10 s

Compatible cameras#

Bodies in our database with a native Canon RF mount.

Adapt it to other systems#

Sony E-mount Nikon Z Fujifilm X-mount Canon EF-M Hasselblad XCD Nikon 1 (CX)Pentax Q

Similar lenses#

Canon RF-S 18-150mm F3.5-6.3 IS STM f/3.5–6.3
Tamron 18-300mm F3.5-6.3 B061 RF f/3.5–6.3
Sigma 16-300mm F3.5-6.7 DC OS | C f/3.5–6.7

Frequently asked questions#

Is the Canon RF 24-240mm F4-6.3 IS USM full frame?

Yes — it covers the full 36 × 24 mm frame.

What is the Canon RF 24-240mm F4-6.3 IS USM equivalent to on APS-C?

On a 1.5× APS-C body it frames like 36–360 mm, and like 38–384 mm on Canon APS-C.

What is the Canon RF 24-240mm F4-6.3 IS USM 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