The Tiffen 138mm Warm Soft FX 3 Filtercan be applied to create a warm cast over an entire image while purposely reducing the appearance of blemishes and wrinkles in portraits, or to apply a general soft-focus effect while maintaining overall sharpness. An array of small lenses distributed within the surface of this filter smooths fine lines and textures, which can be useful for creating a more flattering result of a subject.

The warming effect of this filter can be obtained under daylight when this filter is used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected. This filter's overall coloration reflects a mired shift value of +45.

This filter has a grade of 3. Grades of 1/2, 1, 2, 4, and 5 are also available where this filter type's effect becomes approximately twice as strong with each grade number increase. When higher grade numbers are applied, a halation effect around highlights can be created to further enhance a subject's appearance or produce a desired effect.

This filter is constructed from optical glass for clarity as well as color fidelity. It is made using ColorCore technology, a process that involves laminating the filter substrate between two pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings. No front or rear threads are included on this filter's ring or mount, which is 138mm in diameter and designed for use in third-party or custom filter holders.

Mounted Soft-Focus Effect Filter    For Third-Party or Custom Holders    Soft-Focus Effect, Adds Warmth to Image    +45 Mired Shift Value    1.25x Filter Factor, +0.3 Stops    Reduces Subject Blemishes and Wrinkles    Maintains Overall Sharpness    Optical Glass Construction    ColorCore Technology    138mm Diameter

• General soft-focus effect while maintaining overall sharpness
• Mounted without front or rear threads for use in third-party or custom filter holders for film and television cameras
• Reduces the appearance of blemishes and wrinkles
• Provides a smoother appearance of fine lines and textures
• Can add a warm cast over an entire image when used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected
• 1.25x filter factor reduces exposure by 0.3 stops
• Constructed from optical glass for clarity and color fidelity
• Padded pouch included for storage and transport

Related Questions and Answers

Q: 1. ARRI Diopter Frame 138mm for Matte Box BH # ARK2.0013740 • MFR # K2.0013740 Can it be used with this product?

A: 138mm filters and 138mm filter holders all confirm to industry standards and thus are all compatible. To answer your question, yes, this filter will work in that frame.

Q: 2. Anyone know if this would fit a Tilta MB-T12 Mattebox?

A: Yes, this is compatible with the MB-T12 Matte Box.

Q: 3. Is the Tiffen multi rota tray able to hold a 138mm diopter?

A: Sorry, but since the filter is permanently mounted, you cannot substitute a 138mm diopter.

Q: 4. Does this filter contaminates the bokeh balls with black spots or something else related to the diffusion filter?

A: Yes, the Tiffen Black Diffusion filter is designed with small aberrations to create a soft effect on your images and videos. However, the dots are invisible to the lens due to the proximity to your lens front element.

Q: 5. Will this work on the Panasonic 20mm 1.7 lens? (lens retracts, so I'm not sure it will)

A: This lens takes a 46mm filter as per the specs on the B&H website for the lens https://www.bhphotovideo.com/c/product/986097-REG/panasonic_h_h020ak_lumix_20mm_f1_7_ii_asph.html

Q: 6. will this fit Sony a6600

A: This filter can fit a lens with a 55mm filter thread that is mounted on a Sony A6600.

Q: 7. Why isn't it available in 46mm filter size? That's the size most of my Micro Four Thirds lenses are.

A: Charles... this filter is available, but B&H does not list it on their website as it is considered Special Order . Please call B&H directly and tell them you would like to request they special order item # 46WPOL from Tiffen. I currently show a few of these in stock and they can be dropped shipped directly from Tiffen to you when ordered through B&H.

Q: 8. Whats the thickness of this filter?

A: 4mm

Q: 9. will this compatible with nikon d3200 18-55mm lens?

A: You will want the 52mm size for the Nikon 18-55mm lens.

Q: 10. What cameras will this filter work on?

A: This filter works on film and digital cameras, and the 49mm size for this particular offering allows it to be mounted on any camera with a lens whose filter thread size is 49mm.