Upgrade Guide

Sony A7C II→Sony A9

Is it worth upgrading? Spec analysis, key improvements, and our verdict.

You own

Sony

A7C II

£1499

2023

→

Upgrade to

Sony

£1999 (+£500)

2017

✅

Strong upgrade

The A9 improves across 3 key areas at a reasonable price gap. Most A7C II owners will notice the difference.

What's new in the A9

↑

Weather sealing

Added — fully sealed body
↑

Burst rate

20fps (blackout-free, silent electronic shutter with full AF/AE) vs 10fps mechanical, 30fps electronic
↑

Battery life

~650 shots (CIPA) vs ~530 shots (CIPA)

Unchanged or similar

Suitability by genre

Full spec comparison

Spec	A7C II	A9
Price	£1,499	£1,999
Released	2023	2017	↓
Sensor	33MP Full-frame Exmor R BSI CMOS	24.2MP Full-Frame Stacked BSI CMOS Exmor RS
Resolution	33MP	24MP	↓
Video	4K/60p oversampled, S-Log3, 10-bit internal	4K/30p, 1080p/120p
Autofocus	759-point phase-detect, AI subject recognition	693 phase-detect + 25 contrast-detect, real-time eye/body tracking
Stabilisation	5-axis IBIS, 7.0 stops	IBIS — 5-axis, up to 5 stops
Burst Rate	10fps mechanical, 30fps electronic	20fps (blackout-free, silent electronic shutter with full AF/AE)	↑
Battery Life	~530 shots (CIPA)	~650 shots (CIPA)	↑
Weight	514g body only	673g (with battery and card)	↓
Weather Sealed	No	Yes	↑
Viewfinder	EVF, 2.36M dots, 0.70× magnification	EVF, OLED 3.69M dots, 0.78× magnification, 60fps refresh (blackout-free)
Screen	3.0" vari-angle touchscreen	3.0" tilting touchscreen
Mount	Sony FE (full-frame E-mount)	Sony FE (full-frame E-mount)
Memory Cards	Dual slots: SD UHS-II + CFexpress Type A	Dual SD UHS-II slots

Compare side-by-side

See A7C II and A9 next to each other with our interactive comparison tool.

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