Macro · APS-C

Sony AF DT 30mm f/2.8 SAM Macro

The Sony AF DT 30mm f/2.8 SAM Macro is a APS-C prime lens (30 mm, f/2.8) for Sony / Minolta A-mount. It belongs to the macro class — ideal for close-ups of insects, flowers, products and details at up to life size.

30 mmf/2.8Sony / Minolta A-mount
30 mm
Focal length
f/2.8
Maximum aperture
50°
Diagonal angle of view (APS-C)
APS-C
Designed for

Specifications#

Brand
Sony
Model
AF DT 30mm f/2.8 SAM Macro
Lens type
Macro
Focal length
30 mm
Maximum aperture
f/2.8
Image circle
APS-C (23.5×15.6 mm)
Projection
Rectilinear
Autofocus motor
smooth (SAM)
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 30 mmEquiv. aperture (DoF)
APS-C45 mm · 50°f/4.2
APS-C (Canon)48 mm · 48°f/4.5
Micro Four Thirds60 mm · 40°f/5.6

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: 28 mm f/2.8 on aps-c.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
30 mmf/2.811.8 cm48.6 cm3.33 m19.2 m16.5 m0.7%
30 mmf/417.0 cm70.6 cm5.31 m69.6 m11.5 m0.5%
30 mmf/834.7 cm1.55 m34.1 m∞5.78 m0.2%

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 30 mmNPF at 30 mm, f/2.8
APS-C1/50 s11 s7 s
APS-C (Canon)1/50 s10 s7 s
Micro Four Thirds1/60 s8 s7 s

Adapt it to other systems#

Frequently asked questions#

Is the Sony AF DT 30mm f/2.8 SAM Macro full frame?

No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.

What is the Sony AF DT 30mm f/2.8 SAM Macro equivalent to on APS-C?

Its focal length is already the real value for APS-C: 30 mm frames like 46 mm on full frame.

What is the Sony AF DT 30mm f/2.8 SAM 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