I have not posted here for a while and it is time to get a little more on it. Recently I have been asked by some in the Smug Dailies Community how I get the black backgrounds on some of my shoots so black and the subject so well lit. So my posting here today will go over some of what I do. There are many sites with details on how to set up a technically correct set up, so I am going to try to cover what I do beyond what is found.
But still, I must cover some basics in still photography to get to where I am going. Generally – for a white background the background and subject are both well lit – for a black background the subject is focus of the lighting and the background must get as little light as possible. I'll go thru my set-up in a later posting so you have an understanding of where I start and the lighting I use. But for now I feel what is posted here will give you more of what you are looking for.
Basics, black flat non-reflective craft paper back drop works well and cheap. As stated above concentrate as much of your lighting on the subject and away from the background – as best you can, a well lit subject if the first consideration. Now take a picture or two…
Okay, now that you have taken your shots, we are off to Photoshop… For those that do not believe in using a tool as powerful and versatile as Photoshop – stop reading…you are now on your own.
Here I am only going to address what it I do to get the background blacker, not everything that can be or should be done to a shot. Currently we use CS4, but in the past we used PS Elements 7, both have the ability to complete the following processes that I use. I always shoot in RAW, and CS4 offers much more in the way of ability when converting from Camera RAW to the PE files used by Photoshop. Basically, I use the settings to get the most from the subject while darkening the background as much as possible.
I'm using my recently posted Toad Chair shot to show the differences here. I'm not going to cover all the adjustments I make, that could take paragraphs and days to write and read… Just the key ones that affect the blackness for now.
The original shot below, notice it shows a lot of light on the background giving it a blue hue. The seam of the two sheets of paper I used is also visible, then so is the sprinkler pipe I had the shroom stuffed into to hold it up.
Now in Photoshop, in the RAW converter use the normal adjustments you would use for you own work. The key ones here to getting the background dark are the black and fill light on basic PS. For CS, these, then darks and shadows on curve tab, then on the color tab the luminence, saturation of the blues as black will show up in tones of blue for the most part with too much lighting. Don't be too concerned with the background here; the most important is to adjust your subject the way you want it to appear. These are simply the adjustments that affect the black background the most. Play around with the adjustments, you'll see what happens...
Open your picture in Photoshop. Now the final step and the one that will have the most impact – using the Adjustment, Replace Color feature, setting the dropper to pick up the largest average setting. Select a section of the background that is too light. Adjust the lightness bar setting to the far left, darkening the shade picked. You may need to do this step twice. You will need to watch the affect this has on your subject and it can make some of it too dark too, this will depend on the amount of blues in your subject.
If the adjustment darkens your subject too much, use the selection tool to select the background and separate it from the subject before adjusting. If there are a lot of blue tones in your subject you will more than likely need to do this.
In the sample below I only made the Replace Color adjustment and did no other RAW conversion setting, left everything at default settings. Just this step alone darkened the background to where it needed to be. You no longer see the seam in the background and most of the sprinkler has disappeared. Using the paint brush, the rest is easily corrected…