The 55mm #21 Orange Filter from Tiffen is a filter designed to build contrast in black and white photography and creates separation between the tones. The filter absorbs blue and blue-green colors, rendering blues darker such as for skies in landscape or aerial photos and water in marine shots. The filter has a filter factor of 4.5, so you must increase your exposure by 2 1/3 of a stop to compensate.

Tiffen filters are not dyed, but are manufactured by using ColorCore technology. This process laminates the filter material between two pieces of optical glass and grinds down and polishes the glass. The glass is then mounted to the metal ring, which after that can be screwed onto the lens for the desired effect.

Builds Contrast in B&W Images    For Landscape, Marine, or Aerial Photos    Absorbs Blue and Blue-Green Colors    Renders Blues Darker    ColorCore Technology

Strong contrast in B&W images

Ideal for landscape, marine, or aerial photography

Absorbs blue and blue-green colors

Renders blues darker

Related Questions and Answers

Q: 1. Is this filter multi-resistant coating?

A: Canon has no specific information regarding the coatings applied to their Protect filter, but based on its description, we believe this is not coated/multi-coated in the traditional sense like other brands' filters are. See Canon's page on the filter here: https://bit.ly/38SF33M

Q: 2. Will this work on an LG Ultrawide *curved* monitor like LG 34WN80C-B ?

A: This 3M Privacy Filter can only accommodate flat screens and not curved screens.

Q: 3. Hi, this filter fit all type of summicron lens ?

A: It will only fit a Summicron lens that has a 39mm thread mount as the thread mount sizes do differ in the Summicron line.

Q: 4. How many stops do you lose when using these filters?

A: The B+W #550/040 Orange MRC Basic Filter reduces light by three stops.

Q: 5. I am thinking about a filter for a Swarovski spotting scope that takes an 82mm filter. I am assuming this will work?

A: The Canon 82mm Protector Filter will fit on a Swarovski scope that us an 82mm filter thread such as the STS-80 HD 80mm Spotting Scope.

Q: 6. This 52mm filter will fit on the canon sx530 right into the camera lens without the adapter?

A: The SX530 requires the Filter Adapter FA-DC67A. That would enable one to use 67mm filter with the camera. The 52mm would not be able to mount directly onto the cameras lens.

Q: 7. Will these fit my Nikon D5100 18-55mm lens?

A: No they will not. The Nikon 18-55mm lenses use 52mm sized lens caps and filters. Below is a link to the same set in the 52mm size for you to regard:http://bhpho.to/1f3nfQu

Q: 8. Does the E49 filters fit the Summilux M 1:1.4/24mm ASPH lens?

A: The filter mentioned by Leica can be found here: https://bhpho.to/3DhIBJI

Q: 9. What is the Wratten equilvant for this Leica GREEN filter? (it is NOT #21)

A: The Leica E39 Green Filter is similar to a Wratten #40 green filter.

Q: 10. camera compatibility?

A: I use this filter on the end of a Canon 70-200 lens. It would be compatible with any lens that has77mm thread