FE 100-400mm f/4.5-5.6 GM OSSvs FE 70-200mm f/2.8 GM II

GearFrame · Updated March 2026

Sony FE 100-400mm f/4.5-5.6 GM OSS Sony FE 100-400mm f/4.5-5.6 GM OSS (2017) Starting from £2499 new Best for Wildlife, sports & birds in flight View FE 100-400mm f/4.5-5.6 GM OSS
VS
Sony FE 70-200mm f/2.8 GM II Sony FE 70-200mm f/2.8 GM II (2021) Starting from £2699 new Best for Sports, wildlife, weddings & events View FE 70-200mm f/2.8 GM II

GearScore™ Verdict — Which should you buy?

Wildlife, Sports & Birds In Flight — FE 100-400mm f/4.5-5.6 GM OSS (2017): The benchmark wildlife and sports telephoto for Sony mirrorless — G Master quality with Dual XD tracking that locks onto subjects and holds them.

Sports, Wildlife, Weddings & Events — FE 70-200mm f/2.8 GM II (2021): The best 70-200mm f/2.8 ever made — lighter, sharper, and faster than anything before it.

↓ Full specifications below

Who should buy what

Quick take: The fe 100-400mm f/4.5-5.6 gm oss is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification FE 100-400mm f/4.5-5.6 GM OSS (2017)FE 70-200mm f/2.8 GM II (2021)
Price £2,499 £2,699
Sensor f/4.5-5.6 (variable max aperture) Sony FE mount (full-frame E-mount)
Video 112cm minimum focus distance N/A — lens
Autofocus Dual XD linear motors — ultra-fast tracking for moving subjects Dual XD Linear Motor AF — best-in-class tracking
Stabilisation 4.5-stop OSS (up to 5.5 stops combined with body IBIS) Optical SteadyShot (OSS) — 5.5 stops with A7 IV IBIS
Burst Rate N/A N/A
Battery Life N/A N/A
Weight 1395g 1045g
Dimensions 93.9mm diameter × 218mm length 87.8mm diameter × 200mm length
Weather Sealed Yes Yes
Viewfinder N/A N/A
Screen N/A N/A
Mount Sony FE (full-frame E-mount) 77mm filter thread
Memory Cards N/A N/A
Connectivity N/A N/A

Suitability by genre

Genre FE 100-400mm f/4.5-5.6 GM OSSFE 70-200mm f/2.8 GM II
Wildlife
9.0
9.0
Sports & Action
9.0
—
Landscape
7.0
—
Sports —
9.0
Wedding —
9.0
⚡ Compare specs side by side FE 100-400mm f/4.5-5.6 GM OSS prices → FE 70-200mm f/2.8 GM II prices →

More comparisons with FE 100-400mm f/4.5-5.6 GM OSS

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