Telephoto zoom · APS-C

Sony AF DT 55-200mm f/4-5.6 SAM

The Sony AF DT 55-200mm f/4-5.6 SAM is a APS-C zoom lens (55–200 mm, f/4–5.6) for Sony / Minolta A-mount. It belongs to the telephoto zoom class — ideal for sport, wildlife, events and compressed landscapes.

55–200 mmf/4–5.6Sony / Minolta A-mount
55–200 mm
Focal length
f/4–5.6
Maximum aperture
29°–8°
Diagonal angle of view (APS-C)
APS-C
Designed for
3.6×
Zoom ratio

Specifications#

Brand
Sony
Model
AF DT 55-200mm f/4-5.6 SAM
Lens type
Telephoto zoom
Focal length
55–200 mm
Maximum aperture
f/4–5.6
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 55 mmAt 105 mmAt 200 mmEquiv. aperture (DoF)
APS-C82 mm · 29°158 mm · 15°300 mm · 8°f/6.0
APS-C (Canon)88 mm · 27°168 mm · 15°320 mm · 8°f/6.4
Micro Four Thirds110 mm · 22°210 mm · 12°400 mm · 6°f/8.0

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: 50 mm f/4 on aps-c.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
55 mmf/44.9 cm20.2 cm1.30 m5.51 m38.7 m1.7%
55 mmf/89.8 cm40.7 cm2.74 m14.0 m19.4 m0.8%
105 mmf/41.3 cm5.4 cm34.8 cm1.41 m141 m6.2%
105 mmf/82.5 cm10.8 cm69.8 cm2.87 m70.6 m3.1%
200 mmf/40.3 cm1.4 cm9.4 cm38.3 cm512 m23.6%
200 mmf/80.6 cm2.8 cm18.8 cm76.8 cm256 m11.8%

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 55 mmNPF at 55 mm, f/4
APS-C1/320 s6 s5 s
APS-C (Canon)1/320 s6 s5 s
Micro Four Thirds1/400 s5 s4 s

Adapt it to other systems#

Frequently asked questions#

Is the Sony AF DT 55-200mm f/4-5.6 SAM 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 55-200mm f/4-5.6 SAM equivalent to on APS-C?

Its focal length is already the real value for APS-C: 55–200 mm frames like 84–307 mm on full frame.

What is the Sony AF DT 55-200mm f/4-5.6 SAM good for?

As a telephoto zoom it suits sport, wildlife, events and compressed landscapes.

Sources & licences#

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