Sony FE 12-24mm F2.8 GM vs Tamron 12-20mm f/2.8

Both are Sony E wide zoom lenses for full frame. Here is what actually differs.

Sony · 2020

FE 12-24mm F2.8 GM

f/2.8847 g

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Tamron · 2026

12-20mm f/2.8

f/2.8570 g

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Pick the Sony FE 12-24mm F2.8 GM if

You need more reach: 24mm vs 20mm at the long end
Our notes say it suits: Astrophotography, architecture and interiors, dramatic landscapes

Pick the Tamron 12-20mm f/2.8 if

You want the lighter lens to carry: 277 g lighter (570 g vs 847 g)
You shoot close-ups: it focuses down to 0.18 m vs 0.28 m
You want bigger close-ups: 0.17× vs 0.14× maximum magnification
You prefer a newer design: released 2026 vs 2020

Spec differences

11 differences

Specifications that differ between the Sony FE 12-24mm F2.8 GM and the Tamron 12-20mm f/2.8
	Sony FE 12-24mm F2.8 GM	Tamron 12-20mm f/2.8
Brand	Sony	Tamron
Focal length	12-24mm	12-20mm
Weight	847 g	570 g lighter
Length	137 mm	119.3 mm shorter
Diameter	97.6 mm	90 mm slimmer
Min focus distance	0.28 m	0.18 m closer
Max magnification	0.14×	0.17× larger
Aperture blades	not listed	12
Optical design	not listed	17 elements / 12 groups
Weather sealing	not listed	Yes
Released	2020	2026

5 identical specs hidden: mount, type, format, max aperture, image stabilization. Show all

Mount: Sony E both
Type: Wide Zoom both
Format: Full frame both
Max aperture: f/2.8 both
Image stabilization: No both

Our notes

Sony FE 12-24mm F2.8 GM

An f/2.8 ultra-wide zoom for full-frame E-mount covering 12-24mm. The bulbous front element prevents screw-in filters, so filters are handled at the rear or with a holder.