A7 IIIvs Tamron 28-75mm f/2.8 Di III VXD G2

GearFrame · Updated March 2026

Sony A7 III Sony A7 III (2018) From £1699 Best for All-round photography & video View A7 III
VS
Tamron Tamron 28-75mm f/2.8 Di III VXD G2 Tamron Tamron 28-75mm f/2.8 Di III VXD G2 (2021) From £699 Best for Wedding, travel & general purpose View Tamron 28-75mm f/2.8 Di III VXD G2

Which should you buy?

All-Round Photography & Video — A7 III (2018): Still one of the best all-round cameras money can buy — particularly strong used. The A7 III proved that full-frame doesn't have to mean compromises, and nothing at this price point has meaningfully beaten it.

Wedding, Travel & General Purpose — Tamron 28-75mm f/2.8 Di III VXD G2 (2021): The best-value standard zoom for Sony FE — constant f/2.8, fast VXD AF, and weather sealing for far less than the Sony FE 24-70mm GM II.

↓ Full specifications below

A7 III (2018)

  • Enthusiast photographers upgrading from APS-C for the first time
  • Working photographers who need reliable AF and weather sealing
  • Anyone who shoots in low light regularly
  • Hybrid shooters needing both stills and video performance

Quick take: The tamron 28-75mm f/2.8 di iii vxd g2 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification A7 III (2018)Tamron 28-75mm f/2.8 Di III VXD G2 (2021)
Price £1,699 £699
Sensor 24.2MP Full-Frame Exmor R BSI CMOS f/2.8 (constant max aperture)
Resolution 24.2MP
Video 4K/30p (6K oversampled), 1080p/120p slow-motion 18cm minimum focus distance
Autofocus Phase-detect, 693 points, real-time Eye AF & animal AF VXD (Voice-coil eXtreme-torque Drive) linear motor
Stabilisation 5-axis IBIS, 5 stops None (relies on body IBIS)
Burst Rate 10fps with AF/AE tracking
Battery Life ~710 shots (CIPA)
Weight 565g (body, battery, card) 540g
Dimensions 126.9 × 95.6 × 73.7mm 75.8 × 117.6mm
Weather Sealed Yes Yes
Viewfinder EVF, 2.36M dots, 0.78× magnification
Screen 3.0" tilting touchscreen, 921k dots
Mount Sony E-mount Sony FE (full-frame E-mount)
Memory Cards Dual SD (UHS-II slot 1, UHS-I slot 2)
Connectivity USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC
⚡ Compare specs side by side A7 III prices → Tamron 28-75mm f/2.8 Di III VXD G2 prices →

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