The Nikon D90 is a powerful and feature-rich DSLR camera that offers a range of autofocus options to help you capture sharp and well-focused images. However, with so many options available, it can be overwhelming to know where to start. In this article, we’ll take a closer look at how to set autofocus on your Nikon D90, and provide you with some tips and tricks to help you get the most out of your camera’s autofocus system.
Understanding Autofocus Modes
Before we dive into the specifics of setting autofocus on your Nikon D90, it’s essential to understand the different autofocus modes available on your camera. The Nikon D90 offers three main autofocus modes: AF-A, AF-S, and AF-C.
AF-A (Auto-Servo AF)
AF-A mode is the default autofocus mode on the Nikon D90. In this mode, the camera automatically switches between AF-S and AF-C modes depending on the subject’s movement. If the subject is stationary, the camera will use AF-S mode to focus. If the subject is moving, the camera will switch to AF-C mode to track the subject’s movement.
AF-S (Single-Servo AF)
AF-S mode is ideal for stationary subjects, such as landscapes, portraits, and still-life photography. In this mode, the camera focuses on the subject and locks the focus until you take the picture or release the shutter button.
AF-C (Continuous-Servo AF)
AF-C mode is designed for moving subjects, such as sports, wildlife, and action photography. In this mode, the camera continuously focuses on the subject as it moves, allowing you to capture sharp images of fast-moving subjects.
Setting Autofocus On Your Nikon D90
Now that we’ve covered the different autofocus modes available on your Nikon D90, let’s take a look at how to set autofocus on your camera.
Step 1: Select The Autofocus Mode
To select the autofocus mode on your Nikon D90, follow these steps:
- Press the AF-mode button, located on the top of the camera, just behind the shutter button.
- Rotate the main command dial to select the desired autofocus mode (AF-A, AF-S, or AF-C).
- Release the AF-mode button to lock in your selection.
Step 2: Select The Autofocus Area Mode
In addition to selecting the autofocus mode, you can also select the autofocus area mode on your Nikon D90. The autofocus area mode determines how the camera selects the focus point.
- Press the AF-mode button and the main command dial simultaneously.
- Rotate the sub-command dial to select the desired autofocus area mode (Single Point, Dynamic Area, Auto Area, or 3D Tracking).
Step 3: Select The Focus Point
Once you’ve selected the autofocus mode and autofocus area mode, you can select the focus point on your Nikon D90.
- Use the multi-selector to select the desired focus point.
- You can also use the center button on the multi-selector to quickly select the center focus point.
Tips And Tricks For Using Autofocus On Your Nikon D90
Here are some tips and tricks to help you get the most out of your Nikon D90’s autofocus system:
Use The Right Autofocus Mode For The Job
Make sure to select the right autofocus mode for the type of photography you’re doing. For example, if you’re shooting sports or wildlife, use AF-C mode to track the subject’s movement. If you’re shooting portraits or still-life photography, use AF-S mode to focus on a stationary subject.
Use The Autofocus Area Mode To Your Advantage
The autofocus area mode can be a powerful tool in your photography arsenal. For example, if you’re shooting a portrait, use the Single Point autofocus area mode to focus on the subject’s eyes. If you’re shooting a landscape, use the Auto Area autofocus area mode to allow the camera to select the focus point.
Use The Focus Point To Control The Composition
The focus point can be used to control the composition of your image. For example, if you’re shooting a portrait, use the focus point to focus on the subject’s eyes, and then recompose the shot to place the subject off-center.
Common Autofocus Issues And How To Fix Them
Despite its advanced autofocus system, the Nikon D90 can still experience autofocus issues from time to time. Here are some common autofocus issues and how to fix them:
Camera Won’t Focus
If your camera won’t focus, try the following:
- Make sure the lens is clean and free of debris.
- Check that the autofocus mode is set to AF-A, AF-S, or AF-C.
- Try using a different autofocus area mode.
Camera Is Focusing On The Wrong Subject
If your camera is focusing on the wrong subject, try the following:
- Use the Single Point autofocus area mode to focus on the desired subject.
- Use the focus point to select the desired subject.
- Try using a different autofocus mode, such as AF-S or AF-C.
Conclusion
Mastering autofocus on your Nikon D90 takes time and practice, but with the right techniques and knowledge, you can capture sharp and well-focused images every time. By understanding the different autofocus modes, selecting the right autofocus area mode, and using the focus point to control the composition, you can take your photography to the next level. Remember to use the right autofocus mode for the job, and don’t be afraid to experiment with different autofocus area modes and focus points to find what works best for you.
What Is Autofocus And How Does It Work On The Nikon D90?
Autofocus is a camera feature that automatically adjusts the lens to focus on a subject, ensuring a sharp and clear image. On the Nikon D90, autofocus works by using a combination of sensors and motors to detect the distance between the camera and the subject, and then adjusting the lens accordingly.
The Nikon D90 has a 11-point autofocus system, which means it has 11 sensors that work together to detect the subject and adjust the focus. The camera also has a range of autofocus modes, including single-shot AF, continuous AF, and manual focus, which can be selected depending on the type of photography being done.
What Are The Different Autofocus Modes On The Nikon D90?
The Nikon D90 has several autofocus modes, including single-shot AF (AF-S), continuous AF (AF-C), and manual focus (MF). Single-shot AF is best for stationary subjects, while continuous AF is best for moving subjects. Manual focus allows the photographer to adjust the focus manually using the lens.
In addition to these modes, the Nikon D90 also has an AF-A mode, which automatically switches between single-shot AF and continuous AF depending on the subject’s movement. The camera also has an AF-area mode, which allows the photographer to select the autofocus point or points to use.
How Do I Select The Autofocus Point On The Nikon D90?
To select the autofocus point on the Nikon D90, press the AF-mode button and rotate the sub-command dial until the desired autofocus point is highlighted. The camera also has an auto-area AF mode, which automatically selects the autofocus point or points based on the subject’s location in the frame.
The Nikon D90 also has a 3D-tracking mode, which allows the camera to track a moving subject and adjust the autofocus point accordingly. This mode is best for sports and wildlife photography, where the subject is moving rapidly.
What Is The Difference Between Single-Shot AF And Continuous AF On The Nikon D90?
Single-shot AF (AF-S) is best for stationary subjects, as it locks the focus on the subject and does not adjust it until the shutter is released. Continuous AF (AF-C), on the other hand, is best for moving subjects, as it continuously adjusts the focus to track the subject’s movement.
Continuous AF is also useful for capturing sharp images of subjects that are moving towards or away from the camera. However, it can be more difficult to use than single-shot AF, as it requires the photographer to track the subject and adjust the focus accordingly.
How Do I Use The Autofocus Lock On The Nikon D90?
To use the autofocus lock on the Nikon D90, press the AE-L/AF-L button while the autofocus is active. This will lock the focus on the subject, even if the subject moves or the camera is moved. The autofocus lock can be useful for capturing sharp images of subjects that are moving or changing position.
The autofocus lock can also be used in conjunction with the camera’s autofocus modes, such as single-shot AF or continuous AF. This allows the photographer to lock the focus on a subject and then adjust the composition or exposure settings without losing the focus.
What Are Some Tips For Improving Autofocus Performance On The Nikon D90?
To improve autofocus performance on the Nikon D90, make sure the camera’s autofocus system is calibrated correctly. This can be done by using the camera’s built-in autofocus calibration tool or by sending the camera to a Nikon service center.
Additionally, using a high-quality lens with a wide aperture can also improve autofocus performance. A wide aperture lens allows more light to enter the camera, which can improve the autofocus system’s ability to detect the subject and adjust the focus.
Can I Use Autofocus With Manual Focus Lenses On The Nikon D90?
Yes, the Nikon D90 can be used with manual focus lenses, but the autofocus feature will not be available. Manual focus lenses require the photographer to adjust the focus manually using the lens, rather than relying on the camera’s autofocus system.
However, the Nikon D90 does have a rangefinder feature that can be used with manual focus lenses. This feature uses a series of lines in the viewfinder to help the photographer adjust the focus manually.