How to compare camera quality in portrait and landscape

Your camera looks clear in landscape but soft or oddly cropped in portrait, or the other way around. A fair comparison can help you tell whether the change comes from framing, lighting, automatic camera adjustments, or a real problem.

Use the Camera Test to view the camera and check its reported resolution and frame rate in each orientation. It cannot score sharpness or color for you, so compare the same scene under the same conditions.

Compare portrait and landscape

1. Open the Camera Test on the device you want to check. Allow camera access when the browser asks. Keep the same camera selected for both views.
2. Choose a well-lit scene with a few clear details, such as a face, a printed page, and an object farther away. Keep the camera in one place and avoid changing the lighting.
3. Hold the phone or tablet in portrait orientation. Keep the camera-to-subject distance steady, wait a few seconds for focus and exposure to settle, then note how sharp the details look and what fits in the preview. Note the resolution and frame rate shown by the test.
4. Rotate the device to landscape without moving it closer to or farther from the scene. Wait for the preview to settle again, then check the same details and note the reported values.
5. Repeat the comparison once, preferably switching back to portrait. If you are testing a webcam, do not force a fixed camera to rotate. Compare its normal view with the portrait or landscape framing you need, and keep the camera in its supported position.

Try to keep the lens in nearly the same place as you rotate the device. A large change in distance or angle can alter perspective and make one view seem sharper, even when the camera itself has not changed.

What the result means

The image looks similarly clear in both orientations

That is normal. Rotating a phone usually changes the direction of the view, not the camera sensor's basic ability to capture detail. The resolution may show the same number of pixels with width and height reversed, or the browser may report a different video size. A swapped width and height does not by itself mean the image lost quality.

One view shows more of the scene

That is usually a framing difference. A portrait view is taller and narrower, while a landscape view is wider. Compare the same object near the center of each view, not just how much of the room fits. If the subject is cut off unexpectedly, a camera app or browser setting may be cropping the image.

One view looks softer or darker

Automatic focus and exposure can respond differently after you rotate the device. A light source may also move into the frame or land behind your subject. Wait for the picture to settle and repeat the test. If softness remains, check focus and lens cleanliness before deciding the camera is faulty.

The frame rate changes

A reported frame rate can shift with lighting, device workload, or the camera's automatic settings. It describes how often frames arrive, not how much fine detail each frame contains. If you are comparing motion smoothness, move your hand slowly through the same part of the scene in both orientations and look for pauses as well as the displayed rate.

The preview does not rotate with the device

This may be a screen-orientation or browser display behavior, not a camera failure. Check whether orientation lock is on and whether the preview changes when you reload the page. A browser test shows the camera stream it can access, not every feature of the phone's camera app.

How to fix an uneven comparison

1. Keep the light steady. Test in a bright room and avoid pointing the camera toward a window or lamp. Low light can make the picture look grainy, slow the frame rate, or cause the camera to use a longer exposure.
2. Clean the lens and stabilize the device. Wipe the lens gently with a clean microfiber cloth. Rest the phone on a steady surface so small hand movements do not make one view look less sharp.
3. Check orientation lock. On an iPhone or iPad, turn off Portrait Orientation Lock in Control Center. On Android, enable Auto-rotate in Quick Settings. These controls affect how the screen responds to rotation, though they may not control the camera stream itself.
4. Allow camera access. In Windows 11, open Settings › Privacy & security › Camera and enable camera access for the device and desktop apps. On macOS, open System Settings › Privacy & Security › Camera and allow your browser. On Android, check Settings › Apps › your browser › Permissions › Camera. On iPhone or iPad, check Settings › Apps › your browser › Camera, or allow access when prompted.
5. Close other camera apps. Quit video-call and camera apps, then reload the test. Another app may keep the camera busy or apply its own crop and image adjustments.
6. Check for software cropping. If the Camera Test looks correct but a meeting app cuts off the image, check that app's camera framing, zoom, and background effects. For more help, see How to check if software is cropping your webcam.

When the camera may be faulty

Test the same camera in its built-in camera app and, if possible, on another device. A persistent blur, dark patch, colored line, or focus failure in every app is stronger evidence of a hardware problem than a difference between portrait and landscape alone. If the lens is clean and the fault remains, contact the device maker or a repair shop, especially if the device is under warranty.

What a browser camera test can show

The Camera Test displays a live preview and reports the stream's resolution and frame rate. The browser may receive video that has already been adjusted by the operating system or camera hardware. The test cannot prove the sensor's full photo resolution, evaluate every image-processing feature, or guarantee that another app uses the same crop and settings.

The camera preview runs in your browser, and the test does not upload a recording.