GFX 50S IIvs X-A7vs OM-1 II
Which should you buy?
Studio & Portrait Specialists — GFX 50S II (2021): Medium format quality at the most accessible price ever — 51MP detail and tonal richness no APS-C or full-frame body can replicate.
Beginner Fujifilm — X-A7 (2019): The most affordable X-mount entry — Fujifilm colour and film simulations with a large flip screen for beginners.
Wildlife & Action — OM-1 II (2024): 120fps burst, 8-stop IBIS, and IP53 sealing — the most capable wildlife and action camera in the Micro Four Thirds world.
Who should buy what
GFX 50S II (2021)
- You want to experience medium format without a five-figure investment
- You shoot landscape, architecture, or portraits where resolution and tonal depth matter
- You're in the Fujifilm ecosystem and want to step up to a larger sensor
X-A7 (2019)
- You want an affordable first mirrorless with decent video capabilities
- You shoot a lot of selfie-style content or vlog on a budget
- Note: no viewfinder and limited lens support — the X-T30 II is a better long-term investment
OM-1 II (2024)
- You shoot wildlife, birds, or fast action and want the best MFT autofocus available
- You need strong weather sealing without the weight of a full-frame sports body
- You're in the MFT system and want a flagship-level body upgrade
Quick take: The gfx 50s ii has the highest resolution at 51mp; the x-a7 is the most affordable; only the gfx 50s ii, om-1 ii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 50S II (2021) | X-A7 (2019) | OM-1 II (2024) |
|---|---|---|---|
| Price | £2,999 | £399 | £1,499 |
| Sensor | 51.4MP Medium Format GFX 44×33mm BSI CMOS | 24.2MP APS-C CMOS (Bayer, not X-Trans) | 20.4MP Micro Four Thirds Stacked BSI CMOS |
| Resolution | 51.4MP | 24.2MP | 20.4MP |
| Video | 4K/30p (cropped) | 4K/30p, 1080p/60p | 4K/120p Cinema4K, Apple ProRes RAW (with recorder) |
| Autofocus | Phase-detect, 425 points | Phase-detect + contrast, 425 points | Quad-Pixel phase-detect, 1053 points, AI subject recognition (birds/animals) |
| Stabilisation | 5-axis IBIS, 6.5 stops | None (no IBIS) | 5-axis IBIS, 8.0 stops (Dual IS) |
| Burst Rate | 3fps | 6fps | 120fps electronic (blackout-free), 15fps mechanical |
| Battery Life | ~440 shots (CIPA) | ~440 shots (CIPA) | ~520 shots (CIPA) |
| Weight | 900g body only | 320g body only | 561g body only |
| Dimensions | 150.0 × 104.2 × 87.2mm | 118.0 × 80.6 × 55.2mm | 134.8 × 91.6 × 72.7mm |
| Weather Sealed | Yes | No | Yes |
| Viewfinder | EVF, 3.69M dots, 0.77× magnification | None | EVF, 5.76M dots, 0.83× magnification |
| Screen | 3.2" tilting touchscreen | 3.5" fully articulating touchscreen | 3.0" fully articulating touchscreen |
| Mount | Fujifilm G-mount (medium format) | Fujifilm X-mount | Micro Four Thirds |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-I slot | Dual SD UHS-II slots |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | USB-C, Bluetooth, Wi-Fi |
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