Canon FDn 24mm 1:2.8 Specs, Equivalents & Depth of Field

24 mm

Focal length

f/2.8

Maximum aperture

84°

Diagonal angle of view (Full frame)

Full frame

Designed for

Specifications#

Brand: Canon
Model: FDn 24mm 1:2.8
Lens type: Wide-angle prime
Focal length: 24 mm
Maximum aperture: f/2.8
Image circle: Full frame (36×24 mm)
Mount(s): Canon FD
Projection: Rectilinear
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	Equiv. aperture (DoF)
Full frame	24 mm · 84°	f/2.8
APS-C	36 mm · 61°	f/4.2
APS-C (Canon)	38 mm · 58°	f/4.5
Micro Four Thirds	48 mm · 49°	f/5.6

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/2.8 on full frame.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
24 mm	f/2.8	29.1 cm	1.26 m	15.3 m	∞	6.88 m	0.3%
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%

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/2.8
Full frame	1/25 s	21 s	12 s
APS-C	1/40 s	14 s	9 s
APS-C (Canon)	1/40 s	13 s	9 s
Micro Four Thirds	1/50 s	10 s	8 s

Compatible cameras#

Bodies in our database with a native Canon FD mount.

Adapt it to other systems#

Sony E-mount Canon RF Nikon Z Fujifilm X-mount Micro Four Thirds L-Mount Canon EF-M Fujifilm G-mount Hasselblad XCD Nikon 1 (CX)Pentax Q Samsung NX Canon EF Nikon F

Similar lenses#

Canon FDn 28mm f/2.8 f/2.8

Frequently asked questions#

Is the Canon FDn 24mm 1:2.8 full frame?

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

What is the Canon FDn 24mm 1:2.8 equivalent to on APS-C?

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

What is the Canon FDn 24mm 1:2.8 good for?

As a wide-angle prime it suits street, environmental portraits, landscapes and astro.

Sources & licences#

Lensfun lens database — CC BY-SA 3.0

Last updated October 03, 2026 · How we calculate · Sources