So what do you do when it’s darker than your meter will read or the lighting is so unusual you don’t have a clue?
You can start with what other people know.
There is a list of exposures to use in all sorts of odd situations called the Black Cat guide. The only down side to this is that it costs £20, which would buy a chunk of film or even a working light meter.
There is (update – was) a free online alternative: Fred Parker’s Ultimate Exposure Computer. This is like the Black Cat guide but probably has more information on how to use a light meter. The best thing though is that it gives good guide exposures for all sorts of situations.
For the rest, I used to take notes of every suggested exposure situation. The photo magazines used to run articles all the time about fireworks, fog, street scenes and so on. Good for them, as they could re-run pretty much the same articles at the same time each year. And I used to write down their suggested settings in what became the notebook of all photographic knowledge.
For example, taking a picture of someone lighting a cigarette using just the light from the match. Almost impossible to meter unless you have one of those clever cameras that continues to meter even when the shutter is open. Or you consult the notebook and use 400ISO and f4 for the time it takes to the match to flare. The example here used Tri-X pushed to 1600, which gave me a tad more depth of field.
I shot two frames (two matches’ worth) before my subject stopped cupping the match and actually lit their fag with it. This one was sharp, the second one blurred.
What about flames? Try 400ISO and 1/500 at f8. This picture below was actually given a fair bit more exposure as I wanted some detail in the background. I’m not sure how well it shows on a small screen, but you can see the climbing frame and other bits of the play area to give the fire some context.
And no, the fire wasn’t really that colour. It was a black and white picture that I toned red in the highlights later.
How about dim indoor lighting? Well, Fred says that dim indoor lighting is around EV0 or 8 secs at F5.6 on 400ISO. I think it turned out OK.
I was talking to someone a month or so back who had grown up in towns and later moved out to the countryside. They said how surprised they were that you could walk around easily under a full moon, as it was light enough to see by.
Moonlight is about 19 stops less bright than sunlight. If you allow say 3 stops for recipricity, you would open-up 22 stops from sunny 16. Sounds a lot, but what it translates to is roughly:
Full moon, 400ISO, 15 mins at f5.6
3/4 moon – 15 mins at f4
1/2 moon – 60 mins at f5.6
1/4 moon – 120 mins at f5.6
You might want to keep the moon itself out of shot, as it will move some distance during these shooting times and give you a streak in the sky. Also, these settings will give you daylight-like lighting. If you want it to look like moonlight you could reduce the time.
The moon itself is in full sunlight, so use sunny 16 and a long lens to get pictures of the craters.
OK, I’ve mentioned Sunny 16 a few times. Apart from being a great podcast, what is it? In bright sunlight, set your aperture to f16 and the shutter speed to the nearest value to the ISO. So 100ISO would mean f16 and 1/125. 400ISO would be f16 and 1/500. This works about right and gives about the right exposure for when you don’t have a meter.
If it’s less than sunny, you dial it down appropriately:
Sunny, hard shadows – f16
Hazy sun, soft shadows – f11
Cloudy, no shadows – f8
Overcast – f5.6
As with all of this stuff, you need to experiment and keep notes so that you can repeat what worked. And don’t fear the Fup Duck. Writing that, I can hear a tune in my head – ‘don’t fear the quacker‘ anyone? Or perhaps, as it was Mr Parker’s advice we are following, it should be ‘light, said Fred‘.
Sorry.