ProCamera lets you shoot with external add-on lenses — macro, telephoto, anamorphic, fisheye, microscope, and more — something the native iOS Camera app cannot do reliably. The key is that ProCamera lets you manually select the single built-in lens your add-on lens is mounted over, which matters on iPhones with dual or triple camera systems on the back.
Many camera apps, including the native one, use all lenses at once through a system called Multi-Lens Fusion: the camera switches between lenses or combines their images automatically, with no way to turn it off. With an add-on lens attached, this background switching can cause blackout spots, obstructed views, black corners, vignetting, or dark frames.
ProCamera avoids this by letting you enable Single Lens Mode, which keeps a single, manually chosen lens active — so your external lens works without those visual distortions.
How to use external lenses with ProCamera:
1. Mount the external lens over the iPhone camera lens.
Precise alignment over the built-in lens you want to use is essential. The layout of the camera lenses varies by iPhone model, so keep this in mind when attaching — or when choosing — an add-on lens.
Some external lenses are designed for a specific iPhone lens — most commonly the 1x Wide lens, others for the 2x, 3x, or 5x Tele lens. Some fit multiple lenses, such as both Wide and Tele. Always check the manufacturer’s manual to ensure proper mounting.
2. Open ProCamera and switch to SI or M mode.
ProCamera only operates in Single Lens Mode in semi-automatic SI mode or manual M mode. These are the modes that let you choose the single lens your add-on lens is mounted over, so switching to one of them is the most important step:
- Open the Control Panel (the 9-dot button in the bottom-right corner of the Capture Screen).
- Tap the exposure-mode button labeled ISO & Shutter (its icon reflects the current exposure mode; e.g. A).
- Select semi-automatic SI or manual M mode.
3. Select the camera lens your external lens is mounted over.
Use the Lens selector to choose the lens your add-on lens is attached to.
Identifying Single Lens and Multi-Lens Fusion modes
The appearance of the Lens selector tells you whether the app is currently in Single Lens or Multi-Lens Fusion mode.
- Multi-Lens: In automatic A mode, there is no visible outline around any lens button; this indicates that all lenses are active.
- Single Lens: In semi-automatic SI, manual M, and Exposure Bracketing (EB) modes, a blue outline around the highlighted single lens button indicates the currently active lens.
When using an external add-on lens, always use Single Lens mode and select the iPhone camera lens your external lens is mounted over.
Choosing auto or manual focus
Either focus method works with an add-on lens — the best choice depends on the lens type, your subject, and how much control you want. For static subjects and landscapes, manual focus lets you compose deliberately; for fast-moving scenes, auto focus is usually quicker. Experiment with both to see what suits your lens and your shooting style.
For macro lenses specifically, we recommend manual focus or locking the focus. With auto focus, even a 2–3 mm shift in camera position can make the app refocus repeatedly. After setting manual focus, fine-tune by physically moving the camera closer to or further from the subject, keeping the lens’s minimum focus distance in mind.
Anamorphic lenses
For anamorphic add-on lenses, the premium feature bundle includes Anamorphic Desqueeze, developed specifically for shooting photos and recording videos with anamorphic lenses. Learn more in this article.
We can’t test every add-on lens on the market, so we can’t guarantee that every one works perfectly with ProCamera. As a rule of thumb, if a lens is compatible with your iPhone model, it most likely works with ProCamera too. For lens-specific guidance, check the manufacturer’s website and tutorials.
For more on Single and Multi-Lens modes, see this article.
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