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Canon EF 300MM F/2.8L IS II USM Telephoto Lens

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Canon EF 300MM F/2.8L IS II USM Telephoto Lens

£5,700.00 (inc VAT) £4,750.00 (exc VAT)

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In stock 7-10 days Estimated Delivery

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Canon EF300mm f/2.8L IS II USM Telephoto Lens CALL FOR LEAD TIME ON THIS LENS


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The Canon EF300mm f/2.8L IS II USM lens is a very high quality telephoto optic that raises the benchmark for the optical performance of lenses in this range. With new focusing and IS modes, plus superb construction and handling, it is a top-notch telephoto addition to the Canon L-series lens range.

Who is it for?

Aimed at sports, wildlife and news photographers, the EF300mm f/2.8L IS II USM will fulfil a range of requirements for professionals who are seeking a fast aperture telephoto lens with the flexibility of hand-held shooting (thanks to a four-stop IS capability) and superb optical performance.

Key Features

Key features

  • L-type telephoto lens
  • Four-stop Image Stabilizer for blur-free shots
  • Three IS Modes
  • Power Focus mode
  • Fluorine lens coating
  • Two fluorite lens elements reduce chromatic aberration and colour blurring
  • Robust build with superb handling
  • Close focusing distance of 2m (6.56ft)
  • Ring-type USM with high-speed CPU for silent, high-speed AF
  • Security cable lock attachment point
  • Short tripod attachment plate provided


Following on from the existing EF300mm f/2.8L IS USM lens would always be tough, but the ‘Mark II’ version of this lens takes the already widely appreciated optical quality of the old lens and makes it substantially better.

The 16 lens elements in 12 lens groups, as well as the use of two Fluorite lens elements, effectively minimises chromatic aberration and eliminates colour blurring around the edges of a subject – thus providing higher levels of resolution and contrast than the outgoing model.

The optical design and the placement lens elements as well as the use of a Sub-Wavelength structure Coating (SWC) on the fourth group of lens elements reduces ghosting and flare when a bright light source is included within the frame. 

The lens’ ring-type USM autofocus motor combines with an optimized AF algorithm to provide autofocus on par with the outgoing model. The new Power Focus mode is activated from the focus mode selector switch. This mode allows the lens to adjust the focus smoothly by driving the AF motor. It can be used when shooting movies with the lens to provide a pull focus effect.

Power Focus is activated by turning the Focus Preset ring. A small turn will drive the focus slowly, while a larger turn will provide a faster movement through the focus range.

In a concerted effort to improve the handling of the lens, the size and weight have been reduced and the focus ring and switches have been redesigned and repositioned. The weight reduction is 150g (down to 2400g) compared to the previous model and has been made possible by the use of Magnesium alloy and Titanium in the lens body construction.

The focus ring has been moved to fit in a more ergonomic position and it has been made wider so it is easier to find with your eye to the viewfinder.

The switch arrangement has also been modified. The switches are no less likely to be knocked accidentally, and they arrangement is such that the most commonly used switches are placed closer to the camera body, while those used less frequently are placed further away.

Improved durability is another area that has been addressed. The new lens features better dust and moisture proofing and a more durable Image Stabilization mechanism to ensure it keeps working in all environments.

Lenses like this are highly desirable and can be targeted by thieves. To help to limit the risk of theft, the tripod collar-locking knob features a security attachment point compatible with Kensington-type cable locks. By attaching a cable lock to the locking knob rather than the lens, the lens can still be rotated within the tripod collar without tying the lens up in the cable lock.

Designed with lens Extenders in mind, the EF300mm f/2.8L IS II USM lens functions perfectly with the Canon’s Mark III EF1.4x and EF2x Extenders to provide exceptionally high image quality. To get the best out of the new lens and the Mark III extenders you must ensure you attach the Extender to the lens first, before attaching the whole unit to the camera. This ensures that the combined lens information is transmitted correctly to provide the optimum image quality and focus performance.


  • USM autofocus

A ring-type USM autofocus motor, combined with a high-speed CPU and optimised AF algorithm, delivers fast and near-silent AF with precision. It also provides full-time manual focus so that you can adjust the focus with the focus ring, without first having to switch the lens to manual focus. This allows you to adjust the focus accurately to ensure it is exactly where you want it to be for the most creative control possible. The addition of Power Focus mode allows you to activate a motor driven focus shift for use when shooting movies.

  • Image Stabilizer

The Image Stabilizer in a Canon lens works by shifting a stabilizer group of elements to compensate for motion detected by a gyroscope in the lens. There are now three IS modes – Mode 1 for general shooting, Mode 2 for panning and Mode 3 which is aimed at sports photographers.

The panning mode, Mode 2 features a modified IS algorithm as well. This new algorithm negates the IS ‘bump’ that can occur when you first start panning the lens providing a more stable viewfinder image. The new IS mode, Mode 3, only activates the IS mechanism when you have the shutter button fully depressed to take an image. For sports photographers moving between shots, this avoids the lens trying to stabilize random, rapid movements and only begins to compensate while you are shooting.

Once activated, the Image Stabilizer gives up the equivalent of four stops of shutter speed so you can handhold and capture acceptably sharp images at much slower shutter speeds.

For movie shooting with on a tripod, the IS mechanism can be left switched on. The lens will detect it is mounted on a tripod and the IS optics will be locked in place so they cannot move. If vibration is detected the IS will then activate to remove vibrations.

  • Fluorine coating

Keeping lenses clean is important to ensuring the best image quality possible. To help with this, both the front and rear lens element are coated with fluorine which acts as a non-stick, easy to clean surface to help with the removal of dust and dirt or oils left by fingerprints or from the atmosphere. Fluorine is also used on the filters covering the CMOS sensor camera and the rear LCD panels of several EOS models for the same reason.

  • SubWavelength structure Coating

Designed for use in digital photography, Canon’s patented lens element coating helps to minimise the ghosting and flare caused by internal reflection - helping to deliver crisp, clear images. The EF24mm f/1.4L II USM was the first Canon lens to feature the SubWavelength structure Coating and it is now found on several lenses in the range. This coating acts like the surface of a moth’s eye to reduce reflection from the surface of the lens - it has the advantage of reducing both flare and ghosting to improve image quality.

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