Telephoto zoom · Four Thirds

Panasonic G Vario 100-300mm f/4-5.6 II Power OIS

The Panasonic G Vario 100-300mm f/4-5.6 II Power OIS is a four thirds zoom lens (100–300 mm, f/4–5.6) for Micro Four Thirds. It belongs to the telephoto zoom class — ideal for sport, wildlife, events and compressed landscapes.

100–300 mmf/4–5.6Micro Four Thirds
100–300 mm
Focal length
f/4–5.6
Maximum aperture
12°–4°
Diagonal angle of view (Four Thirds)
Four Thirds
Designed for
3.0×
Zoom ratio

Specifications#

Model
G Vario 100-300mm f/4-5.6 II Power OIS
Lens type
Telephoto zoom
Focal length
100–300 mm
Maximum aperture
f/4–5.6
Image circle
Four Thirds (17.3×13 mm)
Projection
Rectilinear
Stabilisation
Yes (optical)
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 100 mmAt 173 mmAt 300 mmEquiv. aperture (DoF)
Micro Four Thirds200 mm · 12°346 mm · 7°600 mm · 4°f/8.0

Depth of field & background blur#

Computed on its native Four Thirds format (CoC 15 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: 105 mm f/4 on four thirds.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
100 mmf/41.1 cm4.6 cm29.4 cm1.19 m167 m7.6%
100 mmf/82.2 cm9.1 cm59.0 cm2.41 m83.4 m3.8%
173 mmf/40.3 cm1.5 cm9.7 cm39.4 cm499 m23.7%
173 mmf/80.7 cm2.9 cm19.4 cm78.9 cm250 m11.8%
300 mmf/40.1 cm0.5 cm3.1 cm12.9 cm1.5 km76.5%
300 mmf/80.2 cm0.9 cm6.3 cm25.9 cm750 m38.3%

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 100 mmNPF at 100 mm, f/4
Micro Four Thirds1/640 s2 s2 s

Compatible cameras#

Bodies in our database with a native Micro Four Thirds mount.

Adapt it to other systems#

Sony E-mountNikon ZFujifilm X-mountCanon EF-MHasselblad XCDNikon 1 (CX)Pentax Q

Similar lenses#

Frequently asked questions#

Is the Panasonic G Vario 100-300mm f/4-5.6 II Power OIS full frame?

No — it is designed for Four Thirds sensors.

What is the Panasonic G Vario 100-300mm f/4-5.6 II Power OIS equivalent to on APS-C?

Its focal length is already the real value for Four Thirds: 100–300 mm frames like 200–600 mm on full frame.

What is the Panasonic G Vario 100-300mm f/4-5.6 II Power OIS 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