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Best Mirrorless Cameras 2025: Sony A7RV vs Canon EOS R5 II vs Nikon Z9 II Compared

Find the best mirrorless camera in 2025 for photography and video. We compare Sony A7R V, Canon EOS R5 Mark II, Nikon Z9 II, Fujifilm X-T5, and more on autofocus, video specs, and value across different budgets.

著者: ktake公開: 2026年3月28日14
PR本記事にはアフィリエイトリンクが含まれます

📦 この記事で紹介している製品

Nikon Z9 II
Nikon
Nikon Z9 II
定価 ¥898,000
Amazon
Sony A6700
Sony Corporation
Sony A6700
定価 ¥130,000
Amazon
Panasonic LUMIX S5 IIX
Panasonic
Panasonic LUMIX S5 IIX
定価 ¥253,000
Amazon
Canon EOS R5 Mark II
Canon
Canon EOS R5 Mark II
定価 ¥598,000
Amazon
Sony A9 III
Sony Corporation
Sony A9 III
定価 ¥899,000
Amazon
Canon EOS R1
Canon
Canon EOS R1
定価 ¥990,000
Amazon

Best Mirrorless Cameras 2025: Professional Comparison

The mirrorless camera market has never been more competitive. We evaluate the best options on autofocus, resolution, video capability, ergonomics, and value across Sony, Canon, Nikon, Panasonic, and Fujifilm systems.

  • Best Resolution: Sony A7R V (61MP, AI subject recognition AF)
  • Best for Video: Canon EOS R5 Mark II (8K RAW, global shutter, IBIS)
  • Best Sports/Wildlife: Nikon Z9 II (20fps mechanical, subject tracking)
  • Best Hybrid Value: Panasonic Lumix S5 IIX (phase-detect AF, 4K 120fps)
  • Best APS-C: Sony A6700 (AI AF, 26MP, compact body)

Specs Comparison

ModelResolutionAF SystemVideoIBISPrice
Canon EOS R5 Mark II45MPDual Pixel CMOS AF II8K RAW, 4K 120fps8-stop~$4,300
Nikon Z9 II45.7MPSubject Recognition AF8K RAW, 4K 120fps6-stop~$5,500
Panasonic S5 IIX24MPPhase-detect AF6K RAW, 4K 120fps6.5-stop~$2,200
Sony A670026MP APS-CAI Phase-detect AF4K 120fps5-stop~$1,400
Sony A9 III24MP Global ShutterReal-time AF 120fps4K 120fps5.5-stop~$6,000

Detailed Reviews

Canon EOS R5 Mark II — Best All-Around Hybrid Camera

The R5 II is a significant upgrade over the original with a new 45MP stacked sensor that enables up to 30fps mechanical burst, 8K RAW internal recording, 4K 120fps without crop, and a global shutter mode up to 1/64,000s. Canon's Dual Pixel CMOS AF II with AI subject recognition is the most reliable autofocus system available, locking onto eyes, heads, and bodies across humans, animals, and vehicles.

  • Pros: 8K RAW internal, 30fps burst, best-in-class AF, 8-stop IBIS, global shutter mode
  • Cons: $4,300 body-only price, RF lenses are expensive, 8K heat management improved but still requires monitoring

Sony A6700 — Best APS-C Mirrorless

The A6700 brings Sony's full-frame AI AF system (subject recognition from A7R V) to an APS-C body at $1,400. The 26MP sensor shoots 4K 120fps without crop, with excellent dynamic range and low-light performance. For travel photographers and content creators who want high performance in a compact package, this is the best APS-C camera available.

  • Pros: AI AF from full-frame lineup, 4K 120fps, compact size, excellent value, large E-mount lens ecosystem
  • Cons: No top LCD, single card slot, crop factor requires lens adjustment for wide angle

FAQ

Q: Sony vs Canon vs Nikon — which ecosystem should I invest in?

A: For video-first work, Sony has the most native lens options and long track record. Canon RF offers some of the best autofocus. Nikon Z has excellent value and quality lenses. Consider which lens system has the focal lengths you need most at your budget before committing.

Q: Do I need 8K?

A: 8K is primarily useful for oversampling to 4K (the resulting image is sharper with lower noise) and future-proofing. For immediate use, 4K 120fps is more practical. The main benefit of 8K cameras like the R5 II is the improved 4K quality from oversampling, not the 8K output itself for most users.

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