How to Change Aperture on a Nikon Camera
Learning how to change aperture on a Nikon camera gives you direct control over depth of field, background blur, and exposure.
The exact method depends on your Nikon body, lens type, and shooting mode, and the details matter more than many beginners expect.
Aperture is one of the three core exposure settings alongside shutter speed and ISO.
On Nikon DSLRs and mirrorless cameras, it can be changed with a command dial, the lens aperture ring on older lenses, or through camera menus in some video and manual setups.
What Aperture Does on a Nikon Camera
Aperture is the opening inside the lens that controls how much light reaches the sensor.
It is measured in f-stops such as f/1.8, f/2.8, f/5.6, and f/11, where lower numbers mean a wider opening and higher numbers mean a narrower opening.
- Wide aperture such as f/1.4 or f/2.8 lets in more light and creates a shallow depth of field.
- Narrow aperture such as f/8 or f/16 lets in less light and keeps more of the scene in focus.
- Exposure effect changes because aperture affects brightness as well as image style.
For portrait photography, a wide aperture often helps separate the subject from the background.
For landscape photography, a smaller aperture is usually preferred because it keeps foreground and background details sharper.
How to Change Aperture on a Nikon Camera in Aperture Priority Mode
Aperture Priority mode, usually marked as A on Nikon cameras, is the easiest way to control aperture without managing every exposure setting manually.
In this mode, you choose the f-stop and the camera automatically selects the shutter speed.
- Turn the mode dial to A or Aperture Priority.
- Look at the camera’s top LCD, rear screen, or viewfinder for the current f-number.
- Rotate the main command dial to change the aperture.
- Watch the f-number change on the display as you turn the dial.
On many Nikon DSLRs, the front or rear command dial changes aperture depending on the camera model and custom settings.
On many entry-level bodies, you may need to hold the exposure compensation button or use a combination of buttons and dials.
If the camera is in a fully automatic scene mode, aperture control may be limited or unavailable.
How to Change Aperture on a Nikon Camera in Manual Mode
Manual mode, marked M, gives full control over aperture, shutter speed, and ISO.
This is the preferred mode when you want consistent results or are shooting in difficult lighting.
To change aperture in Manual mode on many Nikon cameras:
- Set the mode dial to M.
- Use the command dial assigned to aperture, which may be the front or rear dial depending on the model.
- Confirm the selected f-stop in the viewfinder or on the screen.
If the aperture is not changing, check whether the camera is set to a lens or mode that restricts control.
Some Nikon bodies allow custom menu settings to swap dial functions, so the aperture control may not be on the dial you expect.
How to Change Aperture on Nikon DSLR Lenses with an Aperture Ring
Older Nikon lenses and some third-party lenses include a physical aperture ring.
This ring lets you set the aperture directly on the lens instead of using the camera body.
To use an aperture ring correctly:
- Set the lens ring to the desired f-stop.
- Make sure the camera body supports the lens style.
- On many manual-focus Nikon lenses, the ring must be set to the smallest aperture and locked for normal camera control.
Modern Nikon F-mount DSLR lenses often rely on electronic aperture control, while older manual lenses may use mechanical linkage.
If you are using vintage Nikon glass, compatibility depends on the specific body model.
How to Change Aperture on a Nikon Mirrorless Camera
On Nikon Z-series mirrorless cameras, aperture is usually changed with the command dial in A or M mode.
The exact behavior can be customized through camera settings, which is helpful for photographers who want a familiar control layout.
Typical steps include:
- Switch to A or M mode.
- Rotate the designated command dial to adjust the aperture.
- Check the live view display or electronic viewfinder for the current f-number.
Because mirrorless cameras show exposure changes in real time, Nikon Z cameras make it easier to see the effect of aperture before taking the shot.
This is especially useful when shooting portraits, macro subjects, or video.
How Aperture Works in Nikon Video Recording
When recording video on a Nikon camera, aperture influences brightness, motion look, and depth of field.
Many videographers prefer to set aperture manually to keep exposure changes consistent during a clip.
If your Nikon camera allows aperture adjustment during video:
- Switch to video mode and manual exposure if available.
- Use the assigned command dial to select the f-stop.
- Keep an eye on shutter speed and ISO to maintain proper exposure.
For cinematic-looking footage, a wider aperture may help isolate the subject.
However, extremely wide apertures can reduce sharpness across the frame and make focus more difficult, especially when the subject moves.
Common Reasons Aperture Will Not Change
If you are trying to figure out how to change aperture on a Nikon camera and nothing happens, the issue is usually one of a few common causes.
- Wrong shooting mode: Fully automatic or scene modes can lock out manual aperture control.
- Incompatible lens: Some older or third-party lenses may not support electronic aperture changes.
- Lens not mounted correctly: A poor connection can prevent communication between lens and body.
- Custom dial settings: The control you are using may be assigned to a different function.
- Video or live view restrictions: Certain modes limit what can be adjusted.
If the lens is removable, detach it carefully, reattach it, and test the contacts.
You should also check whether the camera is showing an error message related to the lens or aperture mechanism.
Best Aperture Settings for Common Shooting Scenarios
The best aperture depends on the subject, lens focal length, and available light.
Nikon cameras make it easy to test different settings quickly, which is one reason aperture control is so important.
- Portraits: f/1.8 to f/2.8 for soft backgrounds and subject separation.
- Street photography: f/4 to f/8 for a balance of sharpness and flexibility.
- Landscapes: f/8 to f/11 for greater depth of field.
- Macro photography: often f/8 to f/16, depending on focus distance and diffraction limits.
- Low light: wide apertures such as f/1.4, f/1.8, or f/2.8 to gather more light.
Keep in mind that the sharpest aperture on a lens is not always the widest or the narrowest.
Many Nikon lenses perform best in the middle of their range, often around f/5.6 to f/8.
Tips for Faster Aperture Control on Nikon Cameras
If you change aperture often, a few habits can make the process faster and more reliable.
- Use Aperture Priority for quick field work when shutter speed is less important.
- Learn which command dial controls aperture on your specific Nikon model.
- Check custom settings if the dial behavior feels reversed or inconsistent.
- Use the electronic viewfinder or live view to preview depth of field when available.
- Practice with one lens until aperture changes become instinctive.
For photographers using multiple Nikon bodies, it helps to standardize control layouts where possible.
That way, changing aperture feels familiar whether you are using a DSLR like a Nikon D7500 or a mirrorless Nikon Z6-series camera.
Key Nikon Terms Related to Aperture
Nikon manuals and menus often use technical language that can confuse new users.
These terms are worth knowing:
- f-stop: the numerical aperture value, such as f/2.8 or f/11.
- Depth of field: the area of the image that appears sharp.
- Command dial: the wheel used to change settings like aperture and shutter speed.
- Exposure compensation: a brightness adjustment that does not directly change aperture.
- Manual exposure: a mode where you set aperture, shutter speed, and ISO yourself.
Understanding these terms makes it easier to follow Nikon-specific instructions, especially in the camera menu or owner’s manual.
What to Check in the Nikon Manual
Nikon camera models differ in how aperture is assigned to buttons and dials, so the owner’s manual is often the fastest way to confirm the correct method.
Look for sections covering exposure modes, custom controls, and lens compatibility.
If you have changed the button layout or dial assignment, resetting the custom settings can help restore normal aperture control.
This is especially useful if the camera behaved correctly before but stopped responding after a menu change.
Once you know how to change aperture on a Nikon camera for your exact model, the setting becomes one of the most powerful creative tools in your workflow.