Macro · Full frame

Sigma 70mm f/2.8 EX DG Macro

The Sigma 70mm f/2.8 EX DG Macro is a full frame prime lens (70 mm, f/2.8) for Sigma SA, Canon EF, Nikon F, Sony / Minolta A-mount and Pentax K. It belongs to the macro class — ideal for close-ups of insects, flowers, products and details at up to life size.

70 mmf/2.8Sigma SACanon EFNikon F
70 mm
Focal length
f/2.8
Maximum aperture
34°
Diagonal angle of view (Full frame)
Full frame
Designed for

Specifications#

Brand
Sigma
Model
70mm f/2.8 EX DG Macro
Lens type
Macro
Focal length
70 mm
Maximum aperture
f/2.8
Image circle
Full frame (36×24 mm)
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 formatAt 70 mmEquiv. aperture (DoF)
Full frame70 mm · 34°f/2.8
APS-C105 mm · 23°f/4.2
APS-C (Canon)112 mm · 22°f/4.5
Micro Four Thirds140 mm · 18°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: 85 mm f/2.8 on full frame.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
70 mmf/2.83.2 cm13.2 cm85.1 cm3.51 m58.4 m2.5%
70 mmf/44.6 cm18.9 cm1.23 m5.17 m40.9 m1.8%
70 mmf/89.1 cm38.2 cm2.56 m12.7 m20.5 m0.9%

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).

BodyMin. handheld shutter (longest focal)500 rule at 70 mmNPF at 70 mm, f/2.8
Full frame1/80 s7 s4 s
APS-C1/100 s5 s3 s
APS-C (Canon)1/125 s4 s3 s
Micro Four Thirds1/125 s4 s3 s

Adapt it to other systems#

Frequently asked questions#

Is the Sigma 70mm f/2.8 EX DG Macro full frame?

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

What is the Sigma 70mm f/2.8 EX DG Macro equivalent to on APS-C?

On a 1.5× APS-C body it frames like 105 mm, and like 112 mm on Canon APS-C.

What is the Sigma 70mm f/2.8 EX DG Macro good for?

As a macro it suits close-ups of insects, flowers, products and details at up to life size.

Sources & licences#

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

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