The Lens Cover for Canon EF 300mm NO IS f/4 in digital camo from LensCoat is made from 100% closed-cell neoprene, offering protection from minor bumps and scratches. This cover allows you to blend in with your surroundings and is useful for nature, outdoor, and sports photography, as well as photojournalists. The hood piece is designed to slide easily over the barrel, providing waterproof protection. It also acts as a thermal barrier, protecting your hands from the cold lens surface in low temperatures. Digital camo is an advanced, computer-generated, camouflage pattern modeled after the U.S. Army's standard-issue ACU pattern. It has a pixelated design to maximize visual break up and features small rectangular pixels of color, mimicking naturally-occurring dappled textures and rough boundaries.

Waterproof Closed-Cell Neoprene Cover    Easy to Install and Remove    Provides a Thermal Barrier    Clear Plastic Window over Controls    Helps Hide Lens from Wildlife    Protects Lens from Bumps and Scratches    Made in the USA

Includes a clear, flexible UV-PVC window over the AF/IS/VR controls and the distance-scale window

Related Questions and Answers

Q: 1. Hi I have an older model that I bought around 2004. Is this lens the same as the old one or has it been updated in any way? My old one does not work with a Sony FS700 very well and I'm wondering if there is a newer version that would. Thx

A: The newest 300 2.8 model came in stores in 2010

Q: 2. What is the size of the lens hood of the 300 mm f/4L IS USM? Getting a Bahtinov mask for this lens but not sure how big I need.

A: It is approximately 3.50".

Q: 3. only interested in Auto focus and is it good for horses, dogs, waterfowl, and action shots?

A: I use this lens handheld for wildlife shots, especially birds, and find it offers enough speed to capture most images with my 50D body.

Q: 4. How much does the detachable tripod collar weigh?

A: 4.1 oz or 117 gram

Q: 5. Is this lens weather sealed?

A: The lens is not fully weather sealed as does not have the rubber gaskets. But since the lens is a prime lens it does not move in in out like most zooms so there is less chance of getting dust or moisture in it

Q: 6. I am interested in getting this lens for use on a Sony A7-II, as there is no E-mount equivalent. Does anyone have experience using this with a Metabones or Sigma MC-11 adapter? Does autofocus work with either of those on a Sony?

A: When using a 3rd party lens adapter and used to mate the lens and camera from two different companies, the issue always is the speed of the AF performance. As of now, even the very best is behind OEM performance. That being said, the best Metabones adapter with this lens should prove very satisfactory. While Sigma will not support the use of the MC-11 with other manufacturer lenses, many users have reported success with the MC-11 with non-Sigma lenses while an equal number have reported failure. Generally, the latest model lenses seem to work. We could find no reports of the MC-11 and this older design lens unfortunately.

Q: 7. What is the difference in image quality and functional automatic focus between the Extender 1.4x II and 1.4x III?(This is with a 300 mm f/4 IS L series lens on a 60D body.)

A: I have a 50D Canon Camera and the 1.4 III Extender. When used with the 300 mm lens I have no problem with the auto focus and there is minor image quality deterioration. You lose one stop on your aperture. It really is a great combination.

Q: 8. Can you auto focus with the 2.0xiii extender ?

A: Yes and no - just tried it a few weeks ago. It worked, but extremely slowly and sometimes didn't focus on what I'd want, so I find manual focusing with the 2x is easier. By itself though, the 300 4.0L is fast at focusing.

Q: 9. Does the 300mm f/4.0 IS USM lens work with an extender 1.4x II on a 60D camera body?

A: Yes, the 300 mm f4 IS lens will function very well with a 1.4 X extender. It will slow the auto-focus down, but it will still auto-focus. That combinations worked very well for me while shooting wildlife, with the extra bonus of being very close to being a macro lens. The extender doesn't change the close focusing ability of the lens, so you have a 420 mm lens that focuses down to just under 5 feet.

Q: 10. Has anyone tried this lens paired with the Canon 5DS?

A: It works very well on the 5DS.