Upgrade Guide

Sony A7C→Sony Sony A9 III

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

You own

Sony

A7C

£1299

2020

→

Upgrade to

Sony

Sony A9 III

£5999 (+£4,700)

2023

✅

Worthwhile

Clear improvements over the A7C. Whether it justifies the cost depends on which upgrades matter most to your shooting.

What's new in the Sony A9 III

Unchanged or similar

Suitability by genre

Full spec comparison

Spec	A7C	Sony A9 III
Price	£1,299	£5,999
Released	2020	2023	↑
Sensor	24.2MP Full-Frame Exmor R BSI CMOS	24.6MP full-frame Exmor RS CMOS (global shutter)
Resolution	24MP	25MP	↑
Video	4K/30p (oversampled), 1080p/120p slow-motion, S-Log2/S-Log3	4K/120p, 4K/60p, 1080p/240p
Autofocus	Phase-detect, 693 points, real-time Eye AF & animal AF	AI subject recognition AF, 759-point phase-detect
Stabilisation	5-axis IBIS, 5 stops	8-stop IBIS
Burst Rate	10fps with AF/AE tracking	120fps blackout-free electronic	↑
Battery Life	~740 shots (CIPA) — outstanding for a Sony mirrorless	530 shots (CIPA)	↓
Weight	509g (body, battery, card)	703g body only	↓
Weather Sealed	No	Yes	↑
Viewfinder	None built-in — use rear screen or accessory EVF	0.64" Quad-XGA OLED EVF, 9.44M dots
Screen	3.0" vari-angle touchscreen, 921k dots	3.2" fully articulating touchscreen
Mount	Sony E-mount	Sony FE (E-mount)
Memory Cards	Single SD UHS-II	Dual CFexpress Type A / SD UHS-II

Compare side-by-side

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

Get a personalised upgrade score

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Other upgrades from the A7C

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Camera family history