Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

For most phones, you cannot choose a physical aperture: the lens opening is fixed. Use Portrait mode or its blur control for portraits, focus and exposure choices for landscapes, and Night mode with a steady phone for dim scenes. If your phone does have a true adjustable aperture, the best setting depends on whether you want more light and background blur or more depth of field.

What aperture means on a phone camera

Aperture is the opening in a lens that lets light reach the sensor. Its size is written as an f-number: a lower number means a wider opening, which admits more light and can create shallower depth of field; a higher number means a narrower opening, which admits less light and can keep more of the scene acceptably sharp. Google illustrates the relationship with f/1.8 and f/8 in its aperture overview.

That optical principle does not mean most phone cameras offer an aperture setting. On many smartphones the physical opening is fixed, and software estimates depth and applies background blur in Portrait mode. Google notes that phone sensors are small and their focal lengths short, so more of a scene tends to remain in focus than with larger-camera systems. For that reason, copying a DSLR f-stop recommendation onto a phone can be misleading.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Can you change aperture on your phone?

First identify whether the control changes the lens opening or only the rendered image. A control labelled “aperture” may be a virtual depth-effect slider. Most phones have a fixed physical aperture; a small number of specific models or camera modules have genuine variable aperture or model-specific manual controls. Availability can depend on the lens, capture mode, software version, and market.

#1 Best Overall
Xenvo Pro Lens Kit for iPhone and Android, Macro and Wide Angle Lens with LED Light and Travel Case Black
  • ✔ COMPATIBLE WITH ALL SMARTPHONES, TABLETS, and LAPTOPS including ALL iPhone models, Samsung Galaxy and Note, Google Pixel, Huawei and more. CONTENTS INCLUDE: TruView 0.45x Wide Angle Lens, Clarus 15x Macro Lens, TruGrip Lens Clip, GlowClip Mini Rechargeable LED Light + Charging Cable, Quick-Release Lanyard, DuraCase, EasyClip, and Cleaning Cloth.
  • ✔ TRUVIEW 0.45x WIDE ANGLE LENS - CAPTURE 45% MORE PICTURE WITH EVERY SNAP: Shoot stunning photos of people, pets, travel scenery, landscapes, architecture, selfies and more. NO DARK CORNERS (vignetting) like cheaper lenses. Crafted from aircraft-grade aluminum and premium optical glass for durability and clarity. Multi-element, coated glass lenses minimize ghosting, reflections, lens flare, and other artifacts. Xenvo cell phone lens attachment is ideal for hobbyists and photography pros alike.
  • ✔ CLARUS 15x MACRO LENS - MARVEL YOUR SENSES. MAGNIFY NEARBY SUBJECTS FOR BREATHTAKING, SUPER CLOSE-UP PHOTOS: Capture all the intricacies and details with precision-focus for razor crisp macro photos every time. (For best results, position macro lens approximately 1/2 inch from subject. Not designed for zooming in on distant subjects.) THE TRUGRIP LENS CLIP offers SUPERIOR GRIPPING POWER to fasten your lenses to your cell phone when you're in action mode, framing your next perfect shot.
  • ✔ GLOWCLIP RECHARGEABLE LED FILL LIGHT - The GlowClip LED light clips ANYWHERE on your phone to instantly illuminate your subject and surroundings with warm continuous light. The warm and natural LED light is superior to your smartphone's built in flash—which can be blinding and unnatural—especially in darker settings and venues. FEATURES 3 BRIGHTNESS SETTINGS: Low, Medium and High. Say goodbye to frustrating photo "retakes" and hello to brilliant photos the first time.
  • ✔ QUICK-RELEASE LANYARD AND TRAVEL CASE - TRANSPORT AND PROTECT YOUR LENS KIT: Perfect for taking your Xenvo lenses with you on the fly. The travel case stores and protects all lens kit components snugly and safely while the quick-release lanyard is the perfect way to carry your lenses on your next outing. Just drape the lanyard and lens around your neck. The quick-release lanyard head makes it a cinch to access your Xenvo lenses in a flash so you never miss another photo moment.
  • Physical aperture: Changes the lens opening. A wider opening admits more light; a narrower one can increase depth of field.
  • Virtual aperture or blur control: Changes the software depth effect, not necessarily the lens opening. Huawei and HONOR document such virtual-aperture workflows.
  • Other exposure controls: Shutter speed and ISO affect exposure, but they are not aperture. They may be available in a phone’s manual camera mode.

Examples show why checking the exact device matters. Apple documents manual aperture, shutter-speed, and white-balance controls for iPhone 18 Pro models in specified modes; this is not a general instruction for every iPhone. Samsung’s support material describes variable aperture on the Galaxy Note9, a historical example rather than guidance about current models. Check the official manual for your exact phone and selected camera module before relying on an aperture control.

Choose the approach that suits the scene

Portraits: use Portrait mode or a supported depth control

If your goal is a blurred background, start with Portrait mode. Pixel Portrait Mode uses machine learning to estimate depth and blur the background around the subject, according to Google’s explanation. On supported iPhones, Apple’s Depth Control/Aperture slider adjusts the blur effect, and the effect can be edited after capture; it should not be mistaken for a physical iris adjustment unless documentation for that exact phone says so. See Apple’s Portrait mode guide.

Rank #2
Sale
Cell Phone Camera Lens Kit,11 in 1 Universal 20x Telephoto 0.63Wide Angle 15X Macro 198°Fisheye 2X Telephoto Kaleidoscope CPL Starlight Eyemask Tripod,for Most iPhone Smartphone (Black)
  • ★11-in-1 most complete mobile camera lens kit★:Bostionye phone camera lens kit is perfect for exploring more advanced mobile photography and Videography.Includes 8 lenses:20 times telephoto lens,0.63X wide angle Lens, 15X Macro lens, 198°Fisheye lens, 2X telephoto lens,Kaleidoscopes, 4-line star filter, CPL Filter.Auxiliary equipment:universal clip, tripod, eyecup and Bostionye storage bag。 (Note: macro lens and wide angle lens are screwed together).
  • ★With unique features★: 20x telephoto lens (fixed focus)-magnifies distant subjects and clearly presents long-distance vision. 198 ° fisheye lens-create interesting and unique circular mysterious effect pictures. 15x macro lens-Alignment lens for shooting flowers, insects and other small objects (optimal shooting distance: 1 to 3 inches).0.63X ultra wide-angle lens-capture a large field of view to get an amazing angle of view (The wide-angle lens should be used with a macro lens).
  • ★Create surprise★:The unique functions of each small lenses can be seen in detail in the auxiliary picture display.tripod for easy shooting,An eyecup also allows you to use the telephoto lens as a monocular or a telescope.It is a good companion in the tourism industry and a favorite of animal observers.NOTE: It’s recommended to take off the phone case when using the lens since it may cause unstability while shooting.
  • ★The kit is suitable for use on my phone?★:The lens kit works on 99% popular cell phones on the market. If the distance from the center of the camera(the phone has only one camera) or the main camera(two or more cameras) to any edge of your phone is less than 2.2cm, then the kit will work on your phone.How to know which is the main camera: block the camera one by one with the camera app on, the one you see a blockage there is the main camera.
  • ★Best Gift Choice & 100% Satisfaction★:A phone lens kit that will provide you an extraordinary experience to capture wonderful moments in your life. The kit is fully equipped and packed in a storage box (can be carried by hand), this lens kit would be a very nice gift choice.Your satisfaction is the most important thing for us. Don’t be hesitate. Thrill your family and friends with Bostionye phone lens right now!

Some manufacturers provide their own virtual-aperture workflow. HONOR’s guide says to focus on the subject and drag the aperture slider; a smaller virtual f-number creates more background blur. It recommends keeping the subject within about 2 m (about 7 ft.) for that particular wide-aperture workflow. Treat that distance as HONOR-specific advice, not a universal portrait rule. See HONOR’s guide and Huawei’s aperture-mode support page.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

With a real variable aperture, a wider setting can admit more light and make optical depth-of-field effects more available. The visible blur still depends on sensor size, focal length, distance to the subject, and processing; no f-number guarantees a dramatic result on every phone.

Rank #3
APEXEL 4 in 1 Phone Photography Kit, 18X Telephoto Lens, 198° Fisheye Lens, 15X Macro Lens, 0.63X Wide Angle Lens, Set with Flexible Phone Tripod, for iPhone Samsung Pixel
  • 【HOW MANY LENSES ARE INCLUDED】4 in 1 cell phone camera lens kit is designed for enthusiasts and professionals.It includes 18X telephoto lens,fisheye lens,wide angle lens & macro lens, flexible tripod, phone holder, lens clip, eyecup, soft cloth and zipped case. Apexel phone lens is a great addition to turn your phone to be a go-to camera. An eyecup also allows you to use the telephoto lens as a monocular
  • 【YOUR SMARTPHONE GOT SMARTER】18X telephoto lens - Magnify distant subjects. Fisheye lens - Create fun and unique circular mystical results picture. Macro lens - Capture close-ups of flowers, insects and other small objects. Wide angle lens - Capture a wide field of view for stunning perspectives with virtually no distortion. With tripod, blurriness is eliminated from shaky hands, or windy days
  • 【WE KNOW, YOU'RE WONDERING】Will it work on Android or iPhone, can it work on front/rear camera, single-camera/multi-camera phone? YES, is the answer. The lens screw ring on the clip is slid-able so you can slide it to reach the main camera of multiple cameras. Compatible with all iPhone models (17/16/15/14/13/12 Pro series), Samsung devices, Google Pixel, and most smartphones
  • 【THIS AND THAT INFO】The Wide Angle and Macro Lens arrive screwed together. To use the wide angle, simply attach both lenses to the clip. To use the macro lens, simply unscrew the wide-angle lens. Two lens clips are provided, the telephoto lens will only fit for one, and the other lenses will only fit on the other clip. -Remember, great pictures start with a clean camera lens, use the cloth that’s provided
  • 【BEST GIFT CHOICE & 100% SATISFACTION】Phone lens kit that will provide you an extraordinary experience to capture wonderful moment. With well packing and good price, it would be a very nice gift choice

Landscapes: prioritize focus, lens, composition, and exposure

On a camera with a genuinely adjustable aperture, narrowing the opening (using a higher f-number) can increase depth of field. But most phone owners cannot stop down a fixed-aperture lens. Instead, choose the camera lens that fits the composition, tap or set focus on the detail that matters, keep the phone steady, and check exposure. This is a practical response to fixed phone apertures; it is not a hidden substitute f-stop control.

Night photos: let Night mode capture, unless motion matters more

If your phone has a fixed aperture, use Night mode when the scene is dim and keep the phone steady until capture finishes. Google says Pixel Night Sight analyzes motion and lighting, adjusts exposure settings, and combines multiple frames to make brighter, clearer images without flash. HONOR’s Night mode guidance likewise describes adjusting exposure time to ambient brightness and keeping the phone steady through the countdown. The exact behavior varies by phone.

Rank #4
Godefa Phone Camera Lens Kit, 14 in 1 Lenses with Selfie Light for iPhone 14 13 12 11 Xs X Pro Samsung and Other Andriod Smartphone, Universal Clip on Wide Angle+Macro+ Fisheye Camera Lenses
  • 14 IN 1 Phone Camera Lenses Kit: This phone lens kits includes selfie ring light, 0.63X wide angle lens & 15X macro, 2X telephoto lens,198°fisheye lens,3/6 kaleidoscope lens,CPL filter lens,radial filter lens, starburst lens and blue/green/yellow/purple, each phone lens has its unique results. The selfie light has 7 adjustable brightness to choose from.
  • The Better the Lens Quality, the Better the Result: All our phone camera lens attachment are crafted with finely processed glass that results in images that are sharp and have minimal distortion and vignetting.
  • Unique Results: Wide-angle lens for capturing a broader scene, telephoto lenses for high-quality-zoom capabilities, macro lenses for providing intense up-close detail of subjects, and fisheye lenses for a fun, circular view of the world, CPL lens filter out scattered light, reduce reflection.
  • Various Effect: Kaleidoscope lens view a centered object multiples 3/6, Starburst Lens adds a dramatic star flare to very bright areas, Radial filter lens allows you to shoot an object with a radial visual effect.
  • Wide Range of Compatible Devices: Portable, removable and solid clip-on design that attaches to almost all smartphones including iPhone 12 11 Xs max, XR, X, iPhone 8 iPhone 7, iPhone 6S, 6S Plus, iPhone 6, 6 Plus, iPhone 5S, SE, Samsung Galaxy S6, S6 Edge, S7, S7 Edge, HTC, Sony, LG G6, G5 and other device which the distance of phone edge to camera less than 1.2 inch.

Longer exposures can brighten a static scene but make moving subjects blur. LG’s manual-photography guide recommends slow shutter speeds for low-light scenes while emphasizing a steady phone or tripod; faster shutter speeds help freeze motion. If a person, pet, or vehicle is moving, prioritize a faster capture and accept that the image may be darker or noisier. A tripod can stabilize a phone for a slow exposure; it does not change aperture and may not be necessary for automatic Night mode. See LG’s manual photography guide.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

How to compare aperture features between phones

Do not compare f-numbers alone. Confirm what each number or slider actually controls, and on which camera module and mode it works.

Best Value
MIAO LAB 11 in 1 Phone Camera Lens Kit - Wide Angle Lens & Macro Lens+Fisheye Lens+ND32//CPL/Color Lens/Star+Kaleidoscope Lens for iPhone Samsung Sony and Most of Smartphone
  • 📷【11 IN 1 DETACHABLE LENS】:This perfect phone camera lens kit including ND32 filter,kaleidoscope lens,CPL filter,star filter,Fisheye Lens four Grad color lens(Blue, Gray, yellow,orange) for your daily photography use and make your photography more creative. 140°Super wide Angle Lens + Update MACRO Lens show you an wide angle view & a clear photo in detail from the target object.
  • 📷【Newly Designed Grad Color Lens】: Four color lens set can give you diversity of creativity. Perfect for changing the mood of a picture. Great for photographing the sky, the sunset, the rosy cloud, the lake water, Take your best coral reef tank photos yet! The smartphone lens filters optimize colors to make your beautiful aquarium colors
  • 📷【HIGH QUALITY CELL PHONE LENS】:Very professionally manufactured product made from aluminum,not cheap plastic,to increase the durability of the product,Put the clip install on phone camera and make sure the lens is aligned with phone camera lens. Shooting artwork pictures by using your smartphones with our phone camera lens kit,enjoy the technical image effect.
  • 📷【EASY TO USE】Universal detachable clamp design,Just clip on the camera lens with the clamp and make sure the lens is aligned with phone main camera lens. Just a few seconds then to make your phone act more like a professional camera.Let's our smart lens kit for cell phone bring you into a stunning fantasy world.
  • 📷【UNIVERSAL COMPATIBILITY & USE GUIDE】: Universal detachable clamp design,work with all kinds of smartphones and tablets, including iPhone 8,7,6,6 plus,6s,6s plus,Samsung Galaxy, iPad and other smartphone like Samsung, Huawei, Sony, LG, xiaomi and many others.
  • Does the phone have a fixed physical opening, a true mechanical variable aperture, or a virtual blur control?
  • Is control available on the main, ultra-wide, or telephoto camera, and in which modes?
  • Can you adjust portrait depth after capture, or only before taking the photo?
  • How does Night mode handle exposure and movement, and how steady must the phone stay?
  • Does the camera app expose shutter speed or ISO if you need to balance brightness against motion blur?

Manufacturer documentation establishes feature behavior, not independent comparative image-quality results. Confirm current specifications and app support for the exact model and region you are considering.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.