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Photography Reflectors — Subtractive Lighting

The Black Reflector

In the beginning of the “Photography Reflectors” series of articles, we talked about several fabrics used with the California Sunbounce system of reflectors, silver, white, gold and zebra. Most photographers usually think about these types of reflector fabrics, but seasoned veteran photographers also know the importance of black fabric reflectors.

One of the photos during the Sacremento Kings Dance Team calendar shoot where we used a black reflector to control the details in the swimsuit.

One of the photos during the Sacremento Kings Dance Team calendar shoot where we used a black reflector to control the details in the swimsuit.

Black reflectors reflect approximately10 percent of the light that strikes them, or in other words, they subtract up to 90 percent of the light aimed in their direction. Some photographers even use black reflectors to “block” light, known as cutting (cutters) or flagging (flags) light sources. Because of the disproportional imbalance between subtracting and reflecting light, this is also why black reflectors are more commonly called a flag or cutter.

This switch in terminology when it comes to labeling a black reflector is because of it’s absorption, or subtraction of light. So let’s look at how this reflector is so unique in helping a photographer by adding light while also subtracting light. The black material is reflecting black-toned light back onto the subject, which is a technique I like to use in my photography, especially when working with blonde hair or light colored clothing outfits on a model.

Think of it like the “v-flats” used in a studio, basically two, 4-foot by 8-foot foam core boards gaffer taped on their longest sides to form a “V” when standing tall. These are great tools for a photographer working with high-key elements, such as a wedding photographer photographing a bride in a white wedding dress. The photographer would place a v-flat on each side of the bride as close to her as possible while keeping the v-flats out of the camera frame.

This technique is also possible with four California Sunbounce Pro, black fabric reflectors. While obviously v-flats are less expensive than four reflectors, the point was to illustrate how the technique works—but on location, say a beach, it’s impracticable to carry two v-flats (four, 4-foot by 8-foot, thin foam core boards), especially if it’s windy, thus this is where a professional photographer would use California Sunbounce Pro black reflectors. The v-flat studio technique is possible with just two portable reflectors, one on each side of your subject, though four make it a replication of the v-flat studio system.

In fact, for a little variety, the photographer can place a silver, gold or white reflector more behind the subject while using the black reflector in the front of the subject. Thus this would create subtraction from say that same bridal gown, while allowing for backlighting accents on the bride. The photographer can still reflect a main light onto their subject, either with another reflector like a silver or zebra reflector, or even with a portable flash.

This is a unique balance of light, subtracting light from the highlights and in the case of the white dress, also reflecting back in some middle tones from the black reflector, while adding a “punch” to the bride’s skin tone and even the eyes from the lighter reflectors.

Black reflectors also work great with blonde haired subjects, as photographers will expose for the subject’s skin tone, usually darker than blonde hair. By using a black reflector, like the California Sunbounce Mini or Micro near the hair of your subject, the photographer will capture a more balanced overall exposure ensuring that hair will not have blown out highlights.

In this shoot, due to limitations around the pool, we used a black reflector above the model to "cut" the light while adding some black-tones back into the white swimsuit.

In this shoot, due to limitations around the pool, we used a black reflector above the model to “cut” the light while adding some black-tones back into the white swimsuit.

These techniques reference the 90-percent rule, which states that pure black will absorb 90-percent of the light that strikes it while pure white will reflect 90-percent of the light that strikes it.  Keeping this rule in mind, anything toward the white-side of the scale is reflecting more light than anything toward the middle or black tones.  Thus blonde hair, especially platinum blonde hair, will always reflect more light than normal skin tones—the human eye corrects this and balances it out but digital cameras do not, they reproduce the hair brighter, or slightly overexposed than the skin.

Again, if on location, especially outdoors, v-flats or black foam core boards are impractical with their inability to collapse for portability during transport, and their ability to collapse with wind during the shoot.  The California Sunbounce system is made of collapsible frames designed as lightweight and portable, made of strong aluminum plus their cross bars are designed to attach a grip-head that secures the frame to a sandbagged light stand.

If I attach the grip head to an arm mounted on a C-stand, then there is even more flexibility to maneuver the black reflectors around the top of the model, closer to her hair.  The concept here is to place the panels just slightly above the camera frame, thus adding 10-percent black, this technique was similar to what I used to photograph Playboy Playmate Holley Dorrough for the cover of my first book, Garage Glamour, Digital Nude and Beauty Photography Made Simple (Amherst, 2006).

While many professional photographers will call black panels of various materials flags, or cutters, I like to think of them as reflectors that can also subtract light when needed, so it’s not unusual to find the silver, gold, white, zebra and black fabrics in my lighting gear bag for my California Sunbounc reflectors. With that I close, and as always, I ask you not to forget the men and women serving in the military to protect our freedoms. God Bless them, their families and friends, Rolando.

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Welcome to LensDiaries.com (Lens Diaries™), a hybrid photography blog with social flair. The photoblog provides photo tips, photo tutorials and photo diaries by professional photographer, author, writer, speaker and social media consultant, Rolando Gomez.

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