![]() So instead of selecting a wide-open aperture such as f/4 or f/5.6, stop down a little. But in most situations, your lens’s widest aperture just isn’t enough. If you’re photographing a bird in flight, you’ll want to keep portions of the wings sharp, too. In my view, every bird photo should have a sharp head and (at the very least) a sharp front leg. If you go too wide, your subject’s legs and body will start to blur. This isn’t a terrible strategy, but here’s the problem: As you widen the aperture, images become softer and you lose depth of field (i.e., the amount of the scene that’s in focus). So while you should definitely increase your ISO if the shutter speed drops below my recommended values, you should keep it as low as possible otherwise. Unfortunately, ISO comes with a big downside: The higher the ISO, the more noise you’ll get in your photos, and the worse they’ll look. If it gets too low, you can boost the ISO, which will force your camera to increase the shutter speed. That’s why it’s important to monitor your shutter speed as you work. You see, the ISO refers to the camera’s sensitivity to light, so if you raise the ISO (i.e., brighten the exposure) while in Aperture Priority mode, the camera will compensate by boosting the shutter speed (i.e., darken the exposure). But you can adjust the shutter speed indirectly by raising and lowering your ISO. If you’ve followed the bird photography settings recommendations I’ve given above, then your camera should be set to Aperture Priority mode.Īnd in Aperture Priority, you can’t actually choose your shutter speed. Use the lowest ISO you can afford for noise-free photos ![]() So unless the light is extremely bright, you’ll often need to keep the shutter speed at my recommended amounts and no higher. The higher the shutter speed, the darker the resulting exposure (or, if you’re using Aperture Priority, the more you’ll need to increase your ISO, which causes other problems). Unfortunately, every shutter speed boost comes with a cost. Now, you might be wondering: Why can’t I just crank up my shutter speed to 1/4000s and leave it there? If the bird is flying at high speeds, then 1/2500s, 1/3200s, or even 1/4000s is even better.
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