Why Do Pictures On My Canon Dslr Come Out Dark On High Shutter Speed?
i put it on a high shutter speed with the shutter priority tab. but the pictures i took came out so dark, i couldn’t even see the image. how can i fix it?
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Tagged with: canon • Dslr • Pictures • Shutter • Speed
Filed under: Canon DSLR Questions
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Hey,
That’s because you don’t understand the basics.
- The faster the shutter speed, the less light comes to your sensor
- The longer the shutter speed, the more light comes to your sensor
Aperture:
- The smaller the f/* number, the wider the aperture.
- The bigger the f/* number, the smaller the aperture.
So for your “too dark images”, you’d need to use a slower shutter speed, use a wider aperture or raise ISO.
I have wrote many tutorials about these basics in photography (shutter speed, aperture, ISO, Dof)
There are a couple of ways to fix this. You can use a slower shutter speed, use a higher ISO, use a wider aperture, or use the flash.
You really, really, really need to READ & STUDY the Owner’s Manual for your camera. Taking a couple of photography classes would be advisable.
A correct exposure has three components – ISO, Shutter Speed and Aperture (aka f-stop). This is called the Exposure Triangle. All three are interrelated variables. Since confusion reigns supreme when you change more than one variable at a time its usually best to set an ISO and then leave it alone. That gives us a more manageable two variables.
Here is a good way to actually see the relationship of the components of the Exposure Triangle: the ancient “Sunny 16 Rule”. Invented before cameras had built-in light meters it states: “On a sunny day, set your aperture to f16 and your shutter speed to 1/ISO.” So if its a sunny day and we choose ISO 100 we’ll be shooting at f16 at 1/100 sec. Now lets look at a chart based on this old “Rule”:
ISO 100
f32 @ 1/25 sec.
f22 @ 1/50 sec.
f16 @ 1/100 sec. “Sunny 16 Rule”
f11 @ 1/200 sec.
f8 @ 1/400 sec.
f5.6 @ 1/800 sec.
f4 @ 1/1600 sec.
f2.8 @ 1/3200 sec.
f2 @ 1/6400 sec.
The aperture (f-stop) determines how much light is admitted by the lens. Its formed by the movable blades of the diaphragm inside the lens. The smaller the number (f2, f2.8) the bigger the opening and the more light admitted. The larger the number (f8, f11, f16) the smaller the opening and the less light admitted.
The shutter controls how long the light admitted by the lens is allowed to expose the sensor, based on the ISO used. As we change the aperture from f16 to f11 twice as much light is admitted and our shutter speed increases since we have more light and more light requires less time to expose our sensor. As we change our aperture from f11 to f16 half as much light is admitted and our shutter speed decreases since with less light admitted it needs more time to expose our sensor.
By looking at our “Sunny 16″ chart we can easily see that if we were to choose a shutter speed of, say, 1/1600 sec. and an f-stop of f16 our exposure would result in an underexposed image – a very dark image.
Conversely, if we chose a 1/100 sec. shutter speed and f4 our image would be overexposed – a very light image.
So you simply cannot arbitrarily set a shutter speed without setting a corresponding f-stop and expect good results. You must learn to use the light meter in the camera if you want to shoot in Manual Mode. Personally, I usually shoot in Aperture Priority so I can control depth of field and let the camera worry about the shutter speed. I do, of course, check the shutter speed so I can determine whether or not I can successfully hand-hold the camera.
Take it off shutter priority and use aperture priority. OR you need to simply slow the shutter speed down. The sensor is not getting the proper amount of light in before the shutter closes in order to expose the photo. You can also try raising the ISO or use flash
Try putting the camera in aperture priority (Av). You’ll want the lowest number (which will result in the camera allowing more light in). You can also try bumping up the ISO (but your images may turn out with a bit more noise (grain). If you have a tripod, you can set the shutter speed to a longer time, to allow more light to be let in. Good luck to you.
Set shutter slower. If you’re not taking action shots anyway, go to aperture-priority. If light is low, set ISO higher.