RF 85mm f/2 IS STMvs A6400

GearFrame · Updated March 2026

Canon RF 85mm f/2 IS STM Canon RF 85mm f/2 IS STM (2020) From £599 Best for Portraits, macro & video on Canon RF View RF 85mm f/2 IS STM
VS
Sony A6400 Sony A6400 (2019) From £899 Best for Content creation & vlogging View A6400

Which should you buy?

Portraits, Macro & Video On Canon Rf — RF 85mm f/2 IS STM (2020): Outstanding value in the RF lineup — sharp, stabilised, macro-capable, and affordable for a portrait prime.

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.

↓ Full specifications below

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 85mm f/2 is stm is the most affordable; only the rf 85mm f/2 is stm is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification RF 85mm f/2 IS STM (2020)A6400 (2019)
Price £599 £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 (stepping motor) — smooth and quiet for video Phase-detect, 425 points, real-time Eye AF & animal AF
Stabilisation Optical IS — 5 stops standalone, up to 8 stops with in-body IS None (no IBIS)
Burst Rate N/A 11fps mechanical, 8fps with AF tracking
Battery Life N/A ~410 shots (CIPA)
Weight 500g 403g (body, battery, card)
Dimensions 78mm diameter × 90.5mm length 120.0 × 66.9 × 59.7mm
Weather Sealed Yes 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 67mm filter thread Sony E-mount
Memory Cards N/A Single SD UHS-I
Connectivity N/A Micro-USB, Wi-Fi, Bluetooth, NFC
Genre RF 85mm f/2 IS STMA6400
Portrait
9.0
9.0
Macro
9.0
Video
9.0
9.0
Street
9.0
Travel
7.0
Wildlife
4.0
⚡ Compare specs side by side RF 85mm f/2 IS STM prices → A6400 prices →

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