Pro Camera 3.6 Brings Continuous Aperture Control to iPhone 18 Pro

Continuous aperture control

The new variable aperture on iPhone 18 Pro and Pro Max gives the Main camera another physical parameter photographers can control. In Apple's Camera app, that control is available through four settings: ƒ/1.48, ƒ/1.8, ƒ/2.8 and ƒ/4.0 .

Pro Camera 3.6 takes a different approach by allowing continuous adjustment across the available aperture range . Instead of moving directly from one preset to the next, you can select values between them and make a finer adjustment to the way light and depth of field are balanced in the image.

Why finer control matters

Aperture is only one part of the exposure. Closing it increases depth of field, but it also reduces the amount of light reaching the sensor. Depending on the scene, that can require a slower shutter speed or a higher ISO.

Imagine photographing a close subject where ƒ/1.8 leaves too little of it in focus, but moving directly to ƒ/2.8 reduces the light more than the scene really requires. An aperture value between the two can give you additional depth while preserving more freedom over shutter speed and ISO.

The same principle applies whenever you are trying to balance subject separation, depth of field and available light. Continuous control does not change what aperture does; it gives you more precision over where that balance sits.

48MP with manual shutter speed

There is another change on iPhone 18 Pro and Pro Max that is less visible, but particularly relevant for anyone who works with manual exposure controls.

On previous iPhone generations capable of 48MP capture, manually setting shutter speed causes capture in JPEG, HEIF and ProRAW to fall back to 12MP. Until now, directly controlling shutter speed has therefore meant accepting a resolution trade-off.

With iPhone 18 Pro and Pro Max, that limitation no longer applies. Pro Camera 3.6 can retain 48MP capture in JPEG, HEIF and ProRAW while shutter speed is controlled manually .

More control without the previous resolution trade-off

In practice, shutter speed can now be chosen around the photograph itself. A faster setting can freeze movement, while a slower one can retain deliberate motion, without giving up the full 48MP output.

The important distinction is not simply that iPhone 18 Pro can shoot at 48MP. It is that manual shutter control and full-resolution capture can now coexist on iPhone 18 Pro and Pro Max.

A faster way back to Auto

Manual settings are useful when you want consistency or direct control, but shooting conditions do not always stay the same. Light changes, subjects move and sometimes the quickest option is to hand one parameter back to the camera.

Pro Camera 3.6 adds an Auto button to the right-hand side of each manual control slider . Tapping it returns that parameter directly to automatic operation, without requiring you to leave the control or rebuild the rest of your manual setup.

It is a relatively small interface change, but one designed to make the transition between manual and automatic control more immediate while you are actually shooting.

Technical note: when ISO is locked, tapping Auto on another exposure parameter may also return additional exposure controls to Auto due to device limitations.

Find RAW photos faster in the Gallery

Pro Camera 3.6 also adds a new RAW filter to the in-app Gallery, making it easier to isolate RAW captures when reviewing your images.

For photographers who regularly switch between processed files and RAW, this provides a quicker way to find the files intended for a more deliberate editing workflow.