RF 15-35mm f/2.8L IS USMvs A7 IV
Canon
RF 15-35mm f/2.8L IS USM (2019)
Starting from £2299 new
Best for Architecture, landscape & astrophotography
View RF 15-35mm f/2.8L IS USM
VS
GearScore™ Verdict — Which should you buy?
Architecture, Landscape & Astrophotography — RF 15-35mm f/2.8L IS USM (2019): The best wide-angle zoom Canon has ever made — optically superb, stabilised, and L-series built.
Portrait & Wedding Photography — A7 IV (2021): The full-frame portrait benchmark — 33MP, AI Eye AF, and exceptional skin-tone rendering in a pro-grade hybrid body.
Who should buy what
A7 IV (2021)
- Working photographers who want a reliable full-frame all-rounder
- Portrait, wedding, and event photographers needing 33MP and fast AF
- A7 III owners ready for a major upgrade in resolution, AF, and video
- Hybrid shooters who want 4K/60p and 33MP stills in one dependable body
Quick take: These cameras are closely matched across the key specs below. Scroll down for the full spec breakdown.
Full specifications
| Specification | RF 15-35mm f/2.8L IS USM (2019) | A7 IV (2021) |
|---|---|---|
| Price | £2,299 | £2,299 |
| Sensor | Canon RF mount (full-frame) | 33MP Full-frame BSI Exmor R CMOS |
| Resolution | — | 33.0MP |
| Video | N/A — lens | 4K/60p oversampled, 10-bit internal, S-Log3, S-Cinetone |
| Autofocus | Dual Nano USM — fast, precise, near-silent | 759-point phase-detect, AI subject recognition |
| Stabilisation | Optical IS — 5 stops (up to 7 stops with IBIS combo) | 5-axis IBIS, 5.5 stops |
| Burst Rate | N/A | 10fps mechanical, 30fps electronic |
| Battery Life | N/A | ~580 shots (CIPA) |
| Weight | 840g | 659g body only |
| Dimensions | 88.5mm diameter × 126.8mm length | 131.3 × 96.4 × 79.8mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | N/A | EVF, 3.69M dots, 0.78× magnification |
| Screen | N/A | 3.0" vari-angle touchscreen |
| Mount | 82mm filter thread | Sony FE (full-frame E-mount) |
| Memory Cards | N/A | Dual slots: CFexpress Type A + SD UHS-II |
| Connectivity | N/A | USB-C (3.2 Gen 2), Bluetooth, Wi-Fi |
Suitability by genre
| Genre | RF 15-35mm f/2.8L IS USM | A7 IV |
|---|---|---|
| Landscape | ||
| Architecture | — | |
| Astrophotography | — | |
| Studio Portraits | — | |
| Outdoor Portraits | — | |
| Wedding & Events | — | |
| Vlogging & Video | — | |
| Sports & Action | — |
More comparisons with RF 15-35mm f/2.8L IS USM
Camera family history