The 55mm Tiffen 29 Dark Red Filter 55mmfrom Tiffen 29 Dark Red Filter 55mmis a filter designed to build contrast in black and white photography and separation between tones. In landscape photography, clear skies are darkened and when combined with a polarizer, a very extreme contrast is added to the image. Many forensic photographers use the #29 Red filter as it absorbs blues colors and enhances red. Therefore, the filter aids in finding evidence. Infrared images are also enhanced giving a stronger effect and look by making foliage look white. The red filter is ideal for copying blue prints, since it enhances the lines and is easier to view the image. It has a filter factor of 16.5, so you must increase your exposure by 4 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.

Strong Contrast and Separation of Tones    Stronger than a #25 Red Filter    Extreme Contrast with a Polarizer    Makes Skies Dramatic and Darker    Used in Forensic or Infrared Photos    ColorCore Technology

Strong contrast and separation of tones

Makes skies dramatic and darker

Stronger than a #25 red filter

ColorCore technology

Related Questions and Answers

Q: 1. Will this work with the Wooden Camera Zip Box Pro 4.5in Round Filter Stage?

A: Yes.

Q: 2. So I was just curious does this come with any sort of case?

A: This filter comes in a hard plastic case.

Q: 3. Since you are out of stock on the Tiffen 49mm Cir. Pol., can I use a linear polarizer instead on a mirrorless camera? My recollection is that Cir. Polarizer was developed to compensate for the effect of the mirror on light measurement in the camera, and if so, then shouldn’t be necessary for mirrorless camera.

A: Yes, a linear polarizer will have no effect on metering or autofocus (PDAF or CAF) in a mirrorless camera, which historically would cause metering and autofocus issues in cameras with mirrors or single-translucent lenses (SLTs).

Q: 4. Would this work for my canon EF-M 15-45 mm lens?

A: Yes. The Tiffen #25 Red Filter (49mm) will fit that lens.

Q: 5. What Nm is this filter? 720? 950? thanks!

A: This filter allows zero light to be passed below 580nm, at 700nm is allows 86.5% to pass.

Q: 6. Hello,What is the difference between this product and the Tiffen 82mm Circular Polarizing Filter?Thank you,Nansen

A: A linear polarizer only differs from a circular polarizer in that it does not contain a quarter wave plane that enables use of auto focus and exposure features. It is generally advised to not use linear polarizers with digital cameras, as digital SLRs are dependent on internal mechanisms to determine focus or metering.

Q: 7. How does this filter effect skin tones would an orange 23a be better?

A: This filter is designed to effect contrast in B&W photography, it is not recommended for color photography as the entire image would be red.

Q: 8. Does the filter have inner threads so that I can stack filters?

A: Yes, Tiffen #25 Red Filter (40.5mm) has inner and outer threads allowing you to stack filters.

Q: 9. Will a linear polarizer affect the AF system of my Sony a7iii?

A: We recommend a Circular Polarizing filter for autofocus cameras

Q: 10. Will it fit Hasselblad 60B CF 80mm lens thread?

A: Yes, this is a 60 Bay (for bayonet) mount similar to the original Hasselblad filters. The only difference is in the lower quality of materials that make up the filter; other than that, it mounts and functions just the same.