Compare lenses

Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR vs Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD

The Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR and the Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD side by side, computed from this guide's catalogue.

Which to pick

Pick the Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR if you want more reach (to 600mm equivalent). Pick the Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD if you want a brighter f/3.5 (0.7 stops more light), for dim light and softer backgrounds; a wider view (from 27mm equivalent); a fit on more cameras (106 against 31 in this guide); and a lighter lens (620 g against 1375 g).

Still torn? Ask the guide about the Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR and the Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD

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 XF 100-400mm f/4.5-5.6 R LM OIS WR	Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD
Maker	Fujifilm	Tamron
Focal length	100-400mm (zoom)	18-300mm (zoom)
Full-frame equivalent	150-600mm on APS-C	27-450mm on APS-C
Maximum aperture	f/4.5-5.6	f/3.5-6.3brighter
Made for	APS-C	APS-C
Mounts	Fujifilm X	Sony E, Fujifilm X, Nikon Z, Canon RF
Stabilised	yes	yes
Autofocus	yes	yes
Zoom range	4.0×	16.7×more range
Weight	1375 g	620 glighter
Cameras it fits	31 in this guide	106 in this guidefits more cameras

Focal range, in full-frame terms

Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR: 100-400mm on APS-C, like 150-600mm.

Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD: 18-300mm on APS-C, like 27-450mm.

Aperture

Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR: f/4.5 wide open.

Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD: f/3.5 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 XF 100-400mm f/4.5-5.6 R LM OIS WR fits 31 and the Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD 106.