Sigma 300-600mm F4 DG OS Sports Lens Announced

Sigma has certainly been on a roll these past couple of years, barely a month passes without them announcing a new lens for mirrorless cameras.

This time they have revealed something very special indeed: its the Sigma 300-600mm F4 DG OS Sports lens and it weighs a whopping 4kg!

The lens will be available for Sony E-mount and L-mount and will retail for $5,999 in the US or £5899 in the UK.

You can already pre-order the lens but it won’t start shipping until April 2025.

The new Sigma 300-600mm F4 lens has been designed specifically for sports, action and wildlife photography.

The lens is constructed from 28 elements in 21 groups which includes 6 FLD and 1 SLD element, anomalous dispersion glass, high refractive index glass, and a water and oil-repellent front coating.

Sigma make a bold claim that the new zoom will deliver the same optical performance as a prime lens.

Autofocus is driven by a high-thrust HLA (high-response linear actuator) motor that drives a lightweight lens focus group located close to the camera body for improved balance and fast and accurate AF.

Built-in image stabilization provides 5.5 stops of stabilization at 600mm and includes two stabilization modes.

The lens barrel itself is built from magnesium alloy, and the lens hood is made of carbon, thermal insulation paint helps to reduce heat absorption.

This is an internal zooming lens which helps to maintain balance when zooming in and out on your subjects.

The lens also includes a new function ring that offers two modes: Focus Preset Mode, by twisting the ring right or left focus will instantly shift to a pre-registered focus position. The Power Focus Mode helps with focusing the lens at a constant speed for applications like video.

There are also four AFL buttons, a focus mode switch, a focus limiter and OS mode switch and a custom mode switch.

There is also a drop-in filter holder for 40.5mm filters and Sigma has developed a new drop-in circular polarizer and a variable ND filter with 7 stops of adjustment to use with the lens.

Unfortunately as usual only the L-mount version is compatible with teleconverters not the E-mount version.

The lens measures 167mm (6.6″) in diameter by 467.9mm (18.4″) long. It weighs in at a rather mighty 3,985g (8.79lbs).

Key Specs

Focal Range	300-600mm
Lens Construction	28 elements in 21 groups (6 FLD, 1 SLD)
Angle of View	8.2-4.1°
Number of Diaphragm Blades	13 (rounded diaphragm)
Maximum Aperture	F4
Minimum Aperture	F22
Minimum Focusing Distance	280(W)-450(T)cm / 110.3(W)-177.2(T)in.
Maximum Magnification Ratio	1: 6 at f=470mm
Filter Size	φ40.5mm (Rear)
Dimensions (Diameter × Length)	Sony E-mount: φ167.0mm x 469.9mm / φ6.6in. x 18.5in.
Weight	Sony E-mount: 3,970g / 140.0oz.
Edition Number	s025
Supplied Accessories	・CASE ・LENS HOOD LH1615-01 ・COVER LENS CAP LC-598E ・REAR CAP LCR III ・SHOULDER STRAP ・TRIPOD SOCKET TS-161 ・DROP IN FILTER HOLDER RFH-21
Mount / Product Barcode	L-Mount: 00-85126-59869-3 Sony E-mount: 00-85126-59865-5

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