Is thus covered in your book Gary. I have it on my phone but it's not the easiest to navigate on my old thing. I have kit printed at home but won't be there for a couple of weeks.
I presume the colour of background will make quite a difference with lighting.
So much to learn...
I've been away for a few days, with just my wellies and my iPhone and I'm not much good with phones
Now that I'm back, there is a brief mention in "Lighting Magic", here it is, but I haven't searched for the photos.
Backgrounds
Backgrounds hardly get mentioned in this e-book, which may seem strange because there is an enormous range available, and most equipment sellers sell far more backgrounds than any other item of photographic equipment.
You can get the pop-up ones, the same mechanism as the 5-in-1 reflectors, and these are very popular but are far too small for many jobs.
You can get backgrounds in cotton (muslin) which is cheap, but it creases very badly. Cotton ones are excellent in black, usable in white and useless in all other colours, and the reason that they are useless is that the creases always show badly unless, as with white ones, they are over lit.
Paper rolls are the old-fashioned solution, and they are still the best if you want to use grey backgrounds, and they are also excellent in white, but poor in black. The reason I don’t recommend them in black is that the surface tends to have some shine on it, which creates unwanted reflections. Paper rolls are commonly available in 1.5m and 2.72m widths, get the wider one if you have enough space, because backgrounds are never wide enough. Paper rolls are available in a bewildering range of colours, none of which are needed, because you can change grey to any colour, simply by lighting it with a lighting gel.
And then there’s vinyl. Vinyl is great in white because it lasts almost forever (unlike paper, which has a very short life) and it is easy to clean. The downside of vinyl is that it costs quite a lot, and it is extremely heavy, requiring a really sturdy mounting system, for safety. There are cheap ones available online that are too thin and too shiny, these are best avoided.
A few years ago, there was a craze for white background shots, and although the craze has now reduced it still remains popular both for portrait / fashion shots and for website use.
Backgrounds are an entirely separate subject to the subject that we’re shooting, and they always need to be lit separately. In many of my shots, I like the drama of a black background, which doesn’t get lit at all, but many people like white backgrounds.
A lot of people struggle to get good results when they create pure white background shots (which some people wrongly call high key shots) in a small studio space, and the poor quality of many of the photos gives white background shots a bad name – but, with care, and with a bit of help from the computer, it
is possible to do it well even in small spaces.
The reason why so many professionals choose to shoot in large studios is that life is a whole lot easier with a lot of space between the subject and the background. This is because it isn’t just the subject (which I call the front subject) that needs to be lit, the background (which I call the rear subject) is a subject in its own right and needs to have its own, separate lighting, and it’s inevitable that some of the light aimed at the background will bounce off it and will hit the back of the front subject, where it will degrade or even destroy fine detail in both hair and clothes – and, the less distance there is between the front and rear subject, the worse this problem will be.
The solution is to use an absolute minimum of extra light on the background, so that little if any light that bounces back onto the front subject can cause this problem. If you look at online tutorials, YouTube videos and even on some websites that should know better, you’ll find that a lot of people say that there should be 2 stops ( 4 times as much) more light on the background than on the front subject, but frankly, that’s nonsense, because it’s overexposing the background like this that causes the problems! There are 2 main reasons for this:
- So much light hits the rear of the subject that fine edge detail, such as skin, hair and light clothing, is destroyed
- So much light hits the lens that lens flare is created, and overall contrast is severely reduced.
With the background badly over-lit
This photo with the background badly over-lit shows the result, all of the fine detail from my model’s hair has been destroyed – and that’s before I’ve actually added the light needed to photograph her – in the shot you see here, it’s just the background that has been lit, the light that is also hitting my model is just light that’s bounced off of the background.
By the time light is added to her face, the situation will be even worse.
So, how should it be done?
- Get as much space as you possibly can between the subject and the background. 2. Just use as little extra light as possible on the background. The background will end up as light grey, not white, but it doesn’t matter because it’s very simple to put that right on your computer later.
- The necessary amount of overexposure, when shooting on digital, is in fact just 0.7 (or 2/3rds) of a stop, it’s all that’s needed and is also the highest level of overexposure that is likely to produce good results in a small studio.
- Use your blinkies to get the exposure right
Enable the blinkies on your camera, so that the overexposed areas on the shot blink at you when you view the shot. As long as the area immediately behind your subject is overexposed enough to blink, you have enough over-exposure to do the job. Parts of the background that are not blinking will photograph as grey, but that is what you should be aiming for, not something that you should try to avoid. All that you then need to do is to lighten those areas in PP, which is a very quick and simple job.
@Mossberg
This may be of help? Apologises if you've seen it.
Gavin Hoey has shorter videos too, on backdrops etc...
View: https://www.youtube.com/live/eVZKrwo7V68?si=tarhfeQAA_Z1t0ct
All credit to him for making a 1-hour video, but I don't have that much time . . .
Here's a very old one of mine, which hopefully will help