Compensate 0.5x iPhone Lens Online
Upload a photo shot with the iPhone 0.5× camera. The tool enlarges the center and smoothly compresses the edges so faces and objects near the frame look more natural.
How the correction is calculated
Apple specifies an approximately 120° field of view for 0.5×. From the image diagonal D = √(W²+H²), the equivalent focal length in pixels is f = D / (2·tan(FOV/2)).
Coordinates are calculated in real pixels: p=((u−0.5)·W, (v−0.5)·H). Width and height are therefore handled directly instead of treating the image as a square.
The original 0.5× image is treated as a rectilinear projection r=f·tan(θ). A stereographic projection r=2F·tan(θ/2) is used for more natural edge geometry and better local shape preservation.
The correction is radially symmetric in pixel coordinates, so X and Y are not warped independently. The slider smoothly blends the original image with the corrected projection.
Fix iPhone 0.5x Ultra Wide distortion online
The iPhone 0.5× Ultra Wide camera can make faces, people, cars, furniture, and other objects close to the edges look unnaturally large or stretched. This browser-based tool remaps the projection so the center becomes relatively wider while the edges are compressed more gently.
No upload is required: correction runs locally in WebGL on your device. Select your iPhone model, adjust the compensation strength, compare before and after, and export a corrected JPG.
Frequently asked questions
What does 0.5x lens compensation fix?
It reduces the exaggerated size and stretching of subjects near the edges of an Ultra Wide photo while keeping the center useful.
Does the photo leave my device?
No. Processing happens locally in your browser and the image is not uploaded to this site.
Does it work with portrait and landscape photos?
Yes. The calculation uses the actual image width and height, so rectangular portrait and landscape frames are handled correctly.
Why is there a compensation slider?
A full projection conversion can look too strong for some scenes. The slider lets you choose a natural-looking balance for each photo.