The iPhone's native camera app does not allow a resolution adjustment, but you can use other methods to produce lower resolution photo files.
To change your photo resolution to the highest quality available, follow the steps below:
- Open Settings on your iPhone.
- Click on Camera.
- Select Formats.
- Select Most Compatible. This results in higher quality photos by saving images in JPEG format.
The iPhone takes pictures at a pretty high resolution (1600x1200 on the original iPhone and 2048x1536 on the iPhone 3GS), and they are automatically compressed to 800x600 when you tap the little icon to email the photo.
Go to Settings > Camera. You can select resolution and FPS for video & slo-mo. However, you cannot change the photo resolution. You you will also be able to choose between high efficiency, using HEIF/HEVC, or most compatible, using JPEG/H.
Want to take High-Resolution photos directly on your Samsung Phone but not sure how? Simply change the Camera Ratio to 3:4 64MP within the Camera settings then you're just a tap away from capturing 64MP High-Resolution shots.
Right-click on the image and then select "Properties." A window will appear with the image's details. Go to the "Details" tab to see the image's dimensions and resolution.
It appears that you may have Optimize iPhone Storage enabled in iCloud. This would store the original versions of your photos in iCloud and lower resolution photos on your iPhone to save storage space. You can see how to disable this feature in the following link.
Open the Settings app on your iPhone. Tap Camera. Tap Formats. Set camera capture to High Efficiency.
From there, the camera blends the images together to create a higher quality image. To use the HDR feature, you just need to tap the HDR option at the top right of the phone screen to turn it on. Now you can take your picture and it will immediately pop more than a regular photo.
Are your iPhone photos 300 DPI? Your iPhone can't directly take 300 DPI photos; however, it can take photos that have higher megapixels, which means you can print them into photos with 300 DPI. For example, the iPhone 8 allows you to take pictures with more than 12,000 megapixels or 4032 x 3024.
iPhone 13 Pro and iPhone 13 Pro Max can also shoot macro videos, including slow-motion and time-lapse. Shooting macro in Photo and Video modes is automatic — just move your iPhone close to the subject and the camera will automatically switch to the Ultra Wide camera if it's not selected, while maintaining your framing.
iPhone 13 Pro supports ProRes recording in HDR using the HLG format or in SDR, and supports these resolutions and frame rates: ProRes support for 256 GB, 512 GB, and 1 TB storage capacity: 4K at 30 frames per second (fps)
All three cameras are 12 megapixels each. Regardless of which iPhone you have, the main camera is the wide camera, the option that's labeled "1x" in the camera app. If you want to switch between cameras, you can tap on the zoom option -- either 0.5x or 2x.
You can see the dpi values when you open the exported photo in Preview and open the Inspector from the Tools menu. For example, this photo has been exported with 180 dpi. But more important than the dpi is the pixel size. It will tell you the quality of the photo.
Here's how you convert to 300 dpi
Click File > Open > Choose your file. Next, click Image > Image Size, set the resolution to 300 if it is less than 300. Click resample, and choose Preserve Details (enlargement) on the drop-down menu. Then click OK.
Get the Actual Pixels App from the App Store. It's free and will tell you the pixel size of any photo you open.
As a result of its larger display size and Aspect Ratio, the iPhone 13 Pro Max has a 2.8K High Resolution Full HD+ display with 2778x1284 pixels and 458 pixels per inch, with 3.6 Mega Pixels, 72% more than an HDTV.