Canon EF 600mm 1:4 L IS III USM

Canon EF 600mm f/4L IS III USM super-telephoto prime lens:

Key Specifications

• Focal Length: 600 mm

• Maximum Aperture: f/4

• Minimum Aperture: f/32

• Optical Construction: 17 elements in 13 groups

• Diaphragm: 9 blades (circular)

• Minimum Focusing Distance: 4.2 m (≈ 13.78 ft)

• Maximum Magnification: ~0.15×

• Filter Size: 52 mm (drop-in)

• Physical Dimensions: Diameter 168 mm × Length 448 mm (≈ 6.61 in × 17.64 in)

• Weight: approx. 3050 g (≈ 6.72 lb)

• Angle of View (Diagonal): ~4°10′

• Image Stabilization: Up to 5 stops of IS correction (CIPA standard)

• Mount: Canon EF (for full-frame DSLRs)

• Weather Sealing / Environmental Resistance: Yes—sealed construction, fluorine coating on front & rear elements.

• Compatible with Extenders/Teleconverters: Supports Canon EF 1.4× and EF 2.0× (with some AF limitations)

• Release Date: Announced September 2018

Additional Features & Notes

• The lens uses advanced coatings: Super Spectra Coating (SSC), Air Sphere Coating (ASC) to reduce flare and ghosting.

• The barrel features a two-layer construction and heat-reflective paint to reduce thermal effects for prolonged outdoor use.

• Customizable electronic focusing ring with selectable sensitivity levels for manual focus override.

• Includes a removable rotating tripod collar for better support when mounted on tripod/monopod.