Upgrade Guide

Canon EOS-1D Mark IV→Canon EOS 90D

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

You own

Canon

EOS-1D Mark IV

£102 used

2009

→

Upgrade to

Canon

EOS 90D

£863 (+£760)

2019

✅

Worthwhile

Clear improvements over the EOS-1D Mark IV. Whether it justifies the cost depends on which upgrades matter most to your shooting.

What's new in the EOS 90D

Suitability by genre

Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.

Full spec comparison

Spec	EOS-1D Mark IV	EOS 90D
Price	£102 used	£863
Released	2009	2019	↑
Sensor	16.1MP APS-H CMOS	32.5MP APS-C CMOS (Dual Pixel AF)
Resolution	16MP	32MP	↑
Video	Full HD 1080p/30, 720p/60	4K/30p (1.6× crop), FHD/120p
Autofocus	45-point phase-detect (39 cross-type) via viewfinder; contrast AF with face detection in live view	Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF)
Stabilisation	No IBIS (lens-based stabilisation only)	No stabilisation
Burst Rate	10fps	10fps mechanical
Battery Life	~1500 shots (CIPA)	~1300 shots (CIPA with OVF)	↓
Weight	1180g (body only)	701g (body only)	↑
Weather Sealed	Not weather sealed	Yes	↑
Viewfinder	Optical pentaprism, 100% coverage, 0.76x	Optical pentaprism, 100% coverage, 0.95× magnification
Screen	3.0" fixed LCD, 920k dots	3.0" vari-angle touchscreen
Mount	Canon EF	Canon EF / EF-S
Memory Cards	Dual slots: CompactFlash + SD	Dual SD UHS-II slots

Compare side-by-side

See EOS-1D Mark IV and EOS 90D next to each other with our interactive comparison tool.

Get a personalised upgrade score

Tell us what you shoot and we'll score the EOS 90D against your specific genres — not just specs.

Other upgrades from the EOS-1D Mark IV

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