Some Nikon flashes come with a set of color filters, they are rarely used, but they can do a good job for the photographer.
What are flash filters for?
- To compensate for color temperature differences flashes and other light sources. Roughly speaking, to create the most correct white balance On the photo.
- For a variety of creative effects, from just giving the picture the right shade to a complex game with white balance.
Best explained by example. I often photograph indoors, in such rooms (bars, restaurants, etc.) there are my own light sources, usually these are old incandescent lamps, even worse, if the lamp in the chandelier, which has glass in different shades. This lighting is often catastrophically small to create some kind of normal picture at low and medium ISO. Therefore, you have to use a flash, the flash has its own color temperature, which is very different from incandescent lamps. When shooting with a flash, porridge from several light sources is obtained, with such a shooting, even the installation white balance the pattern does not allow to achieve an acceptable result. Differences in color are quite painful in portrait shooting, when part of a person’s face is illuminated by the light of lamps, and part by flash light.
The color filter of the flash just changes the color temperature of the flash and I get the same color temperature of all light sources, which makes it very easy to get 'correct' white balance. So, with the right setup BB all light sources will give a conditionally white light in the photo. This is a very nice effect.
in the first picture, due to the different color temperature of the flash and the incandescent lamp, on the left of the picture, you can see a sharp color change from yellow to white, such a difference cannot be treated using the 'BB eyedropper' tool in the processing programs.
If you install a color filter on the flash TN-A1 (imitating the color temperature of an incandescent lamp), you get a completely different effect without strong color differences.
Needless to say, color filters can simply be applied in order to fill in a photograph taken when shooting with a flash, some shade. I love warm colors and sometimes use a TN-A2 filter.
Typically, a Nikon flash kit consists of filters for incandescent bulbs. TN-A1, TN-A2 and for fluorescent lamps FL-G1, FL-G2.
Interesting but flash nikon SB-900, SB-910, SB-700, SB-5000 understand which color filter is installed on them and transmit this information to the camerato optimally configure white balance. When using such flashes, just turn on the automatic white balance or BB A 'flash' on the camera, and the camera will adjust the temperature by itself. Other flashes are unable to transmit color temperature values to the camera.
not all cameras can handle the color filter information that the flash transmits. Exactly about a dressed filter for flash don't know cameras: D2x, D2xs, D2h, D2hs, D1, D1x, D1h, D100, D200, D80, D70, D70s, D50, D60, D40, D40x. With these filters, you need to select the white balance in the specified cameras manually. For other cameras, you need to look in the instructions for each flash separately.
I don't like flash gelatin filters SB-900, they must be very carefully installed using the nozzle. On the SB-910 plastic nozzles are used, but there are only two of them. I rarely use color correction with color filters, color filters are more used to fill a photo with a certain shade. I usually adjust the WB when processing RAW.
The flash itself is not as simple as it might seem at first glance.
Using color filters is a fun and rewarding activity that is automated on many Nikon flash units and cameras.
Help to the project. Thanks for attention. Arkady Shapoval.