Canon RF 100-300 mm F2.8 L IS USM
(There is no RF 100-300 mm f/1.4; the fastest tele-zoom in that range is f/2.8)
Key specifications of the f/2.8 L IS USMMount: Canon RF (full-frame)Focal Length: 100-300 mmMax Aperture: f/2.8 constantStabilisation: 5.5 stops (7.5 stops with IBIS)Min Focus: 1.8 m (5.9 ft)Max Magnification: 0.16×Filter Thread: 112 mm (drop-in)Weight: 2 590 g (5.7 lb)Dimensions: 128 mm Ø × 323 mmWeather Sealed: YesTripod Collar: Removable includedRelease: April 2023Product Code: 5077C002 (USA)