Tamron SP 70-300mm f/4-5.6 Di VC USD vs Sigma 18-125mm f/3.8-5.6 DC OS HSM

Both are Pentax K lenses. Here is what actually differs.

Tamron

Pick the Tamron SP 70-300mm f/4-5.6 Di VC USD if

You need more reach: 300mm vs 125mm at the long end

Pick the Sigma 18-125mm f/3.8-5.6 DC OS HSM if

You want a wider view: 18mm vs 70mm at the wide end
You shoot close-ups: it focuses down to 0.35 m vs 1.5 m

Spec differences

11 differences

Specifications that differ between the Tamron SP 70-300mm f/4-5.6 Di VC USD and the Sigma 18-125mm f/3.8-5.6 DC OS HSM
	Tamron SP 70-300mm f/4-5.6 Di VC USD	Sigma 18-125mm f/3.8-5.6 DC OS HSM
Brand	Tamron	Sigma
Type	Telephoto Zoom	Superzoom
Format	not listed	APS-C
Focal length	70-300mm	18-125mm
Max aperture	f/4	f/3.8
Filter thread	62 mm	67 mm
Min focus distance	1.5 m	0.35 m closer
Max magnification	not listed	0.26×
Aperture blades	not listed	7
Optical design	not listed	16 elements / 12 groups
Autofocus motor	USD	HSM

2 identical specs hidden: mount, image stabilization. Show all

Mount: Pentax K both
Image stabilization: Yes both

Our notes

Tamron SP 70-300mm f/4-5.6 Di VC USD

This 70-300mm f/4-5.6 full-frame telephoto zoom lens from Tamron fits Pentax K mount cameras, from the Tamron SP series with Vibration Compensation. The range suits sports, wildlife, events and portraits.

Our notes