Compare lenses

Fujifilm MKX 50-135mm T2.9 vs Sigma 50-120mm f/2.8 DC OS Contemporary

The Fujifilm MKX 50-135mm T2.9 and the Sigma 50-120mm f/2.8 DC OS Contemporary side by side, computed from this guide's catalogue.

Which to pick

Pick the Sigma 50-120mm f/2.8 DC OS Contemporary if you want optical stabilisation, which helps most on bodies without it; autofocus; a fit on more cameras (90 against 31 in this guide); and a lighter lens (390 g against 1100 g). On these specs the Fujifilm MKX 50-135mm T2.9 has no clear advantage: choose it if the price, the handling or a lens you own decides it.

Still torn? Ask the guide about the Fujifilm MKX 50-135mm T2.9 and the Sigma 50-120mm f/2.8 DC OS Contemporary

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Fujifilm MKX 50-135mm T2.9	Sigma 50-120mm f/2.8 DC OS Contemporary
Maker	Fujifilm	Sigma
Focal length	50-135mm (zoom)	50-120mm (zoom)
Full-frame equivalent	75-202mm on APS-C	75-180mm on APS-C
Maximum aperture	f/2.9	f/2.8
Made for	APS-C	APS-C
Mounts	Fujifilm X	Sony E, Fujifilm X, Canon RF
Stabilised	no	yesstabilised
Autofocus	no, manual focus	yesautofocus
Zoom range	2.7×more range	2.4×
Weight	1100 g	390 glighter
Cameras it fits	31 in this guide	90 in this guidefits more cameras

Focal range, in full-frame terms

Fujifilm MKX 50-135mm T2.9: 50-135mm on APS-C, like 75-202mm.

Sigma 50-120mm f/2.8 DC OS Contemporary: 50-120mm on APS-C, like 75-180mm.

Aperture

Fujifilm MKX 50-135mm T2.9: f/2.9 wide open.

Sigma 50-120mm f/2.8 DC OS Contemporary: f/2.8 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

31 cameras in this guide take both, so either works on the same body. In all, the Fujifilm MKX 50-135mm T2.9 fits 31 and the Sigma 50-120mm f/2.8 DC OS Contemporary 90.