Cherished for sports and wildlife applications, the EF 600mm f/4L IS III USM is a Canon L-series super telephoto lens distinguished by its advanced, lightweight design, quick and intuitive handling, and high speed performance. Using fluorite, Super UD, and aspherical elements, both chromatic and spherical aberrations are kept to minimum in order to realize sharp, clear image quality with accurate rendering and color fidelity. Both Super Spectra and Air Sphere Coatings also contribute to color accuracy and helps to control flare and ghosting when working in backlit and harsh lighting conditions.

In addition to its optical merits, the 600mm f/4 is also characterized by its advanced five stop-effective Image Stabilizer system, which has three separate stabilization modes to suit various shooting applications. Also complementing handling is a sophisticated ring-type USM, which provides quick, quiet, and accurate autofocus performance along with full-time manual focus override. A customizable electronic focusing ring further contributes to precise manual focus control, by affording three focusing sensitivity levels for different applications. Additionally, this lens is weather-sealed for use in trying environmental conditions and it has a removable rotating tripod collar to benefit working atop a tripod or monopod.

EF-Mount Lens/Full-Frame Format    Aperture Range: f/4 to f/32    Super UD, Fluorite & Aspherical Elements    Super Spectra and Air Sphere Coatings    Ring-Type Ultrasonic Motor AF System    Customizable Electronic Focusing Ring    Optical Image Stabilizer    Weather-Sealed Design, Fluorine Coating    Detachable, Rotatable Tripod Collar    Rounded 9-Blade Diaphragm

Super telephoto prime is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 960mm equivalent focal length.

Bright f/4 maximum aperture affords control over depth of field for working with selective focus techniques.

Super UD and fluorite elements are used to greatly reduce color fringing and chromatic aberrations in order to achieve greater clarity and color accuracy.

Aspherical elements help to limit spherical aberrations and distortion for greater sharpness and accurate rendering.

Super Spectra and Air Sphere Coatings have been applied to individual elements to control lens flare and ghosting for greater contrast and color fidelity when working in strong lighting conditions.

An Optical Image Stabilizer helps to minimize the appearance of camera shake by up to five shutter speed stops to better enable working in low-light conditions and with slower shutter speeds. Three distinct IS modes are available: standard single-shot mode, a panning-optimized mode, and a mode that only activates the Image Stabilizer during the exposure.

A ring-type Ultrasonic Motor (USM), along with optimized focusing algorithms and a high-speed CPU, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.

Customizable electronic focusing ring provides three sensitivity levels for how quickly and precisely the lens can manually focus.

Focus Preset function is available to quickly recall a programmed focusing position.

Rounded nine-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.

As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions and also features a fluorine coating on the front and rear elements to guard against water spots, smudges, or oil residue.

Removable rotating tripod collar is included and benefits working with the lens atop a tripod or monopod.

Compatible with optional EF 1.4X and EF 2X teleconverters.

Related Questions and Answers

Q: 1. Does the lens hood lock on like on the Canon 100-400 II?

A: It locks on but not in the same way. The 100-400mm has a traditional bayonet mount: align, twist, and it clicks into locked position. The 600mm hood fits on to the hood mount and then you tighten the lock knob to secure it. See page ENG -19 OF MANUAL: http://gdlp01.c-wss.com/gds/9/0300033279/01/ef600f4lisiiiusm-im-eng.pdf

Q: 2. Does preordering this lens still qualify for the 4% reward as given on th Mk2 version?

A: Currently, rewards points are not available for version III

Q: 3. Does the 600mm iii come with a hood or do I have to buy it separately?

A: A Canon ET-160 (WIII) Lens Hood is included with this lens.

Q: 4. I own version II of this lens and want to upgrade to version III. I also own both a 5D Mark IV and a 5R. I am concerned that version III image stabilization will not work well with either camera. Is there any update on this issue particularly with the Canon 5R?

A: Canon did release a firmware update for this lens that addresses known focusing issues with this lens.

Q: 5. Will the EF 600 F/4L IS III updated with the new firmware work on a 5DMIII without IS issues?

A: I have searched extensively on Canon's website and the IS issue is not related to the 5DIII, just the 5D4 ,6D and EOS R.

Q: 6. DOes the canon 600mm iii come with a hard case?

A: No, it comes with a soft padded zippered case.

Q: 7. Is their any reward on the 600 III that I just preordered , other than having a great lens?

A: You may benefit from a PayBoo card to neutralize potential tax cost.

Q: 8. Is there a hard case for this lens as was the case for prior versions of the 600mm f/4?

A: Canon includes the Canon LS600 Soft Lens Case, B&H # CALS600, as a free accessory with the purchase of the Canon EF 600mm f/4L IS III USM Lens. However, if you are looking for a hard case alternative, Canon does offer the Canon 600C Lens Case, B&H # CA600C, as a separate purchasable accessory. It is a special order item we do not keep in our inventory or order until we receive an order from a customer. There is an estimated 2-4 week arrival estimate after purchase.

Q: 9. Does a 52mm clear glass come with the drop in filter?

A: It does not.

Q: 10. Is the 600mm longer or thicker in comparison to the 500mm II ? Question is to know if it gets in the LowPro bag i hold the 500 in

A: Yes, the 600mm is larger in diameter and longer than the 500mm by 1.7" in length and 1" in diameter.