Canon EOS 90Dvs Sigma fpvs A6400
Canon
Canon EOS 90D (2019)
From £849
Best for Sports, wildlife & DSLR enthusiasts
View Canon EOS 90D
Sigma
Sigma fp (2019)
From £1499
Best for Creative filmmakers & experimental photographers
View Sigma fp
Which should you buy?
Sports, Wildlife & Dslr Enthusiasts — Canon EOS 90D (2019): The best APS-C DSLR Canon ever made — 32MP, 10fps, weather sealing, and an optical viewfinder experience no mirrorless can replicate.
Creative Filmmakers & Experimental Photographers — Sigma fp (2019): The smallest full-frame camera in the world — Cinema DNG RAW and L-mount flexibility in a pocket-sized body that rewards creative shooters.
Content Creation & Vlogging — A6400 (2019): The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Who should buy what
Canon EOS 90D (2019)
- You're invested in Canon EF DSLR lenses and don't want to switch systems
- You shoot wildlife or sports and prefer an optical viewfinder
- You want a mid-range DSLR upgrade without going mirrorless
Sigma fp (2019)
- You're a filmmaker building a cinema rig where the smallest full-frame body is essential
- You want L-mount compatibility to pair with Sigma Art or Leica SL lenses
- You prioritise video and cinema colour over stills ergonomics and functionality
A6400 (2019)
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
Quick take: The canon eos 90d has the highest resolution at 32mp; the canon eos 90d is the most affordable; only the canon eos 90d is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS 90D (2019) | Sigma fp (2019) | A6400 (2019) |
|---|---|---|---|
| Price | £849 | £1,499 | £899 |
| Sensor | 32.5MP APS-C CMOS (Dual Pixel AF) | 24.6MP full-frame Bayer CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 32.5MP | 24.6MP | 24.2MP |
| Video | 4K/30p (1.6× crop), FHD/120p | 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) | Contrast-detect AF with face/eye detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | None (lens-based only) | None (no IBIS) |
| Burst Rate | 10fps mechanical | 18fps electronic | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~1300 shots (CIPA with OVF) | 200 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 701g body only | 422g body only | 403g (body, battery, card) |
| Dimensions | 140.7 × 104.8 × 76.8mm | 112.6 × 69.9 × 45.3mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No | No |
| Viewfinder | Optical pentaprism, 100% coverage, 0.95× magnification | None | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" vari-angle touchscreen | 3.15" fixed touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon EF / EF-S | Leica L-mount | Sony E-mount |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-II + CFexpress Type B (via adapter) | Single SD UHS-I |
| Connectivity | USB 2.0, Bluetooth, Wi-Fi | USB-C 3.1, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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