The Tiffen 2 x 3" #11 Yellow-Green Filter is a basic contrast filter, primarily for use with black and white film. This yellow-green filter subtly darkens skies and lightens foliage. It is commonly associated for use with portraiture and attaining greater separation from skin tones and outdoor backgrounds.

Tiffen filters are made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch.

#11 Filter for General B&W Contrast    Subtly Darken Sky and Lighten Foliage    ColorCore Technology

Yellow-green contrast filter for black and white film subtly darkens skies and lightens foliage.

Suited for portraiture, this filter helps to separate skin tones from outdoor backgrounds.

Related Questions and Answers

Q: 1. Will this lens work on my Canon EOS 40D camera?

A: The Canon EF 11-24mm f/4 will be compatible with the Canon 40D, yes.

Q: 2. Can focus and aperture be manually adjusted when mounted via a lens mount adapter that lacks electronic contacts?

A: Without an electronic connection you will not be able to control aperture on the lens.

Q: 3. So does this mean that a person won't see convergence in the view? Has Canon conquered the problem? For example the top of the view converging together and becoming circular?

A: The lens is considered rectilinear. Meaning technically if you keep the camera and lens level the lines should be very straight. But as this is a very new lens there are no real world reviews as to how it performs but from the specifications it does sound really good.

Q: 4. Are there pre-cut ND filters available and if so in what densities?

A: No, there are not any pre-cut filters available for the rear gel filter slot on the lens.

Q: 5. can it be used on film cameras?

A: Yes, but only if your Canon film camera has an EOS EF mount. If it is older and has the Canon FD mount than that will not work.

Q: 6. can i use polarpro summit system with this lens?

A: No, the Polarpro Summit system will not work with the Canon 11-24mm lens.

Q: 7. Is it made from Japan?

A: According to the information we have, our current inventory's Country of Origin is Japan. Please be aware this can change over the product's production life without notice.

Q: 8. it's 82mm or 77mm?

A: Kyle,I assume you're asking about filter sizes, but this lens doesn't take a front filter. The convex surface of the front element, along with the built-in hood, prevent use of a normal filter.There is, however, a slot for a rear gelatin or plastic filter.I hope this helps.Best,Tom

Q: 9. Will this lens mount to Rebel t5i?

A: Yes, this lens is a EF mount, so can be mounted on all Canon EOS cameras (including EOM M series via an adapter) for your Camera is a direct coupling, your camera accept all EF lenses and EF-S lenses

Q: 10. If this lens has a constant f4 aperture, does that mean I can't shoot at any other f stop with it?

A: NO, this lens goes from F4 to F22, and in easy photo language means that is not going to open or close when you zoom in or out