RF 28mm f/2.8 STMvs A6400
Canon
RF 28mm f/2.8 STM (2023)
Starting from £299 new
Best for Travel, street & lightweight everyday carry
View RF 28mm f/2.8 STM
VS
GearScore™ Verdict — Which should you buy?
Travel, Street & Lightweight Everyday Carry — RF 28mm f/2.8 STM (2023): The most compact RF prime — at 85g it turns any EOS R into a true everyday pocket camera.
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
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 rf 28mm f/2.8 stm is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | RF 28mm f/2.8 STM (2023) | A6400 (2019) |
|---|---|---|
| Price | £299 | £899 |
| Sensor | Canon RF mount (full-frame) | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | — | 24.2MP |
| Video | N/A — lens | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | STM — quiet, suitable for video | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None | None (no IBIS) |
| Burst Rate | N/A | 11fps mechanical, 8fps with AF tracking |
| Battery Life | N/A | ~410 shots (CIPA) |
| Weight | 85g | 403g (body, battery, card) |
| Dimensions | 69.2mm diameter × 24.7mm length | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | No |
| Viewfinder | N/A | EVF, 2.36M dots, 0.70× magnification |
| Screen | N/A | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | 55mm filter thread | Sony E-mount |
| Memory Cards | N/A | Single SD UHS-I |
| Connectivity | N/A | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | RF 28mm f/2.8 STM | A6400 |
|---|---|---|
| Travel | ||
| Street | ||
| Vlogging & Video | — | |
| Video | — | |
| Portrait | — | |
| Wildlife | — |
More comparisons with RF 28mm f/2.8 STM
Camera family history