Increasing contrast when working in black and white, this 52mm Tiffen 52mm Red 23A Lens Filterfrom Tiffen 52mm Red 23A Lens Filteris used to noticeably darken cool and blue tones in order to emphasized both shadows and clouds. Offering greater tonal separation than regular yellow and orange contrast filters, the light-red 23A is especially well-suited to producing dramatic outdoor and landscape imagery. There is an approximate 4x filter factor with this filter, requiring an increase of 2 stops for normal exposure.

The filter is constructed using Tiffen's ColorCore technology, which involves lamenting the filter material between two pieces of optical glass, grounding flat to a tolerance of 1/10,000th of an inch, and mounting within an aluminum alloy ring.

Increases Black and White Contrast    Effect Corresponds to Wratten 23A Filter    Darkens Blue Tones    Lightens Red and Orange Tones    Reduces Haze in Daylight    4x Filter Factor, +2 Stop    Optical Glass, ColorCore Technology    52mm Front Filter Threads    Aluminum Ring

Light-red filter provides the same effect as a Wratten 23A contrast filter, and helps to darken blue tones while lightening warm orange and red tones, when photographing in black and white.

Commonly used for landscape photography to emphasize and darken blue skies and give clouds more visual depth.

Filter factor of 4 requires approximately 2 stops of additional exposure to maintain normal results.

ColorCore technology, which permanently laminates the filter material between two pieces of optical glass, maintains image clarity, accuracy, and consistency.

Aluminum filter ring is both lightweight and durable.

Related Questions and Answers

Q: 1. Will this 9mm thick ND filter work on Nikon 10-24mm Wide angle or is there a thin version?Thanks in advance, Terry

A: The Tiffen 77mm Variable Netural Density Filter may cause vignette on a Nikon 10-24mm lens. B+W makes a thinner profile variable ND filter with a larger filter ring that will be better for use with a wide angle lens: http://bhpho.to/OH7mr4

Q: 2. 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: 3. Is this filter multicoated?

A: no

Q: 4. Will this work with digital as well as film cameras?

A: Yes indeed! Although to work re infrared the digital camera would need to be adjusted to take infrared images.I hope this helps.Baer

Q: 5. Should this filter have a physical hard stop at both ends? I have a different brand variable ND filter on my 50mm, and the adjustment ring will stop at both ends of the spectrum, where this one just keeps spinning with not stop. Is that a defect or how it's made? I find it annoying to not have the tactile 'stop', so to speak, of open or closed filter.Thanks for your help!

A: Adam,I have one and it does not have a stop, which is annoying. On the outside ring of the filter are Min - Max calibrations, which are not of much help. I just eyeball it until I have the scene, or photo exposed how I want it. This lack of a hard stop also caused me to unscrew the filter from my lens when I was just starting out with it. The last inconvenience is the lack of a lens cap to go over it which is a hassle when you are running and gunning. That said, the filter is a big help for quick lighting adjustments... once you get used to it.

Q: 6. Will these filters (52 mm) fit a Nikon 5300 DSLR?

A: As long as you're using a lens that has a 52mm filter thread size, this kit will work with the Nikon 5300. I have the Nikon 18-55mm lens that I use this kit with. I also have a Nikon 55-300 lens that uses 58mm filters so I have two different sizes for my Nikon lenses I use with my 5300. Most lenses have a filter size indicator on the bottom side so you know what size to use. Look for a circle with a diagonal line through it then a number, which is the mm size of the filter threads. For instance, 52.

Q: 7. will this filter fit Sigma 18 -35mm art series lens?

A: Get a step up ring and you can fit the 77 or the 82mm version of the Variable ND filter. I use set up rings on all my lenses that aren't 77mm so I can have fewer sets of filters.

Q: 8. Do these filters still use the 58mm lens cap?

A: Yes, filters with 58mm threads will use a 58mm lens cap.

Q: 9. Does this fit Nikon Lens threads?

A: Peter, B&H lists the lens filter thread specifications at the web page below as having a 1.0 pitch, which is a coarse thread.a href= http://www.bhphotovideo.com/c/product/1175034-REG/nikon_af_s_nikkor_200_500mm_f_5_6e.html target= _blank http://www.bhphotovideo.com/c/product/1175034-REG/nikon_af_s_nikkor_200_500mm_f_5_6e.html/a

Q: 10. Is the end of this filter threaded?

A: The side of this ND filter that faces outward, away from the camera lens to which it is attached, is NOT threaded.