shoot using Aperture Priority mode. So, why do so many professional photographers love Aperture Priority? What makes it so good? Let's find out.
Aperture Priority mode (Av or A on the mode dial) is one of the two semi-automatic modes your camera has. The other is Shutter Speed Priority (TV or S on the mode dial). In Aperture Priority mode, you'll set the aperture and ISO while your meter will automatically read based on its light meter reading. In Shutter Speed Priority mode, you set the shutter speed and ISO.
With Aperture Priority mode, you do not give up your image look. RELATED: What are the Different Metering Modes On My Camera And When Should I Use Them?
Now, let's look at why it's great.
Aperture Controls How Things Look
Aperture is one of the most important factors in how things appear in your images since it's what controls the depth of field. If you are using a wide aperture, like f / 1
On the other hand If you are using a narrow aperture like f / 16, you'll have a very wide range of sharp field.
lens shot, but they 'drastically different', in part due to the aperture. I just could not have shot the portrait well at f / 16 or the skyline at f / 1.8.
Whatever lens you're using, the aperture you use is going to make a big splash. Shutter speed-which we'll look at next-matters, of course, but not as much as the aperture in most situations.
Shutter Speed Is Less Sensitive to Change
Shutter speed falls into two broad categories: almost enough to use your camera handheld or slow enough to blur motion. The general rule is that if you're not using image stabilization, the slowest shutter speed you can use is 1 / [the focal length of the lens, accounting for crop factor] of a second. In other words, if you're using a 100mm lens, your slowest handheld shutter speed is 1 / 100th of a second; If you're using a 50mm lens, it's 1 / 50th of a second.
Unless you're really fast moving subjects, the difference between 1 / 100th of a second and 1 / 4000th of a second just does not matter too much to the overall look of things. That's a 6-stop difference; the aperture equivalent is going from f / 1.8 to f / 14. The photo above was shot at 1 / 125th of a second; the one below is shot at 1 / 1600th of a second; can you spot the difference?
This is why Aperture Priority mode is so much more useful than Shutter Speed Priority mode. For a quick look at what you look like, in which case, you're probably going to use manual mode. To take both photos above, I just put my camera in Aperture Priority mode at f / 1.8; the camera chose an appropriate shutter speed.
It keeps you flexible
Manual mode is great for consistency. You can dial in your settings and know that each photo is going to be identically exposed-assuming nothing changes in the scene. It is, however, inherently inflexible. If something changes, you have to adjust everything.
Aperture Priority mode, on the other hand, is incredibly flexible. You can go from shooting a close up portrait at f / 8 with a single dial twist. If you're doing street photography, you can go from dark alleys to bright plazas and not have to change a thing. If your shutter speed drops too low, you'll have to wait for the moment.
When we advocate, how do you manage to do this? How-to geek, using Aperture Priority mode like this is what we're talking about , You do not have to do any setting by hand, but you should understand what your camera is doing at any given time, and have things set up. If shutter speed does not matter then pick your camera pick it. And when it's picking the wrong one, you have to adjust the ISO or exposure compensation.