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Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max are expected to feature a variable-aperture camera. The upgrade has been rumored repeatedly and would be a first for Apple's smartphone lineup, but what would it actually change for everyday users?

iphone-17-cameras-zoom.jpg

An aperture is the opening inside a camera lens that lets in light. A natural comparison would be the pupils of your eyes, which open wider in the dark and become smaller in bright conditions.

Current iPhone cameras have an opening that's fixed to the one size. To compensate for this, the iPhone adjusts other settings and uses software processing to brighten or darken the image. By contrast, a variable aperture would give the device mechanical control over the amount of light entering the camera.

The biggest improvement – and the one you're most likely to notice first – would be smoother-looking video when shooting outdoors. In bright sunlight, the existing camera on an iPhone has to capture each frame very quickly to avoid an overexposed image, which can sometimes make movement look unnaturally sharp or jerky.

In contrast, the iPhone 18 Pro's variable aperture camera would typically make the lens opening smaller to limit the amount of light that gets in. Doing so should prevent washed-out highlights and allow the camera to record movement with more natural-looking blur. Photos taken in good lighting could also appear sharper, especially around the edges. Not only that, Portrait Mode photos that use the "bokeh" effect should also look more realistic, as opposed to looking rendered computationally.

It's still unclear whether users will control the aperture themselves or whether the iPhone will adjust it automatically. That's a big question mark, since it should determine whether it becomes a hands-on photography tool or a built-in feature that simply makes photos and videos look better behind the scenes.

We should learn the answer to this question in the coming months. Apple is expected to debut the iPhone 18 Pro and iPhone 18 Pro Max in September, alongside its first foldable iPhone.

Article Link: The iPhone 18 Pro's Rumored Camera Upgrade, Explained
 
It's still unclear whether users will control the aperture themselves or whether the iPhone will adjust it automatically. That's a big question mark
Apple should make both a default setting that is automatic as well as a more customizable option for pro users to give them more control over use of this aperture feature. That’s the way that people would prefer this to be implemented
 
Apple should make both a default setting that is automatic as well as a more customizable option for pro users to give them more control over use of this aperture feature. That’s the way that people would prefer this to be implemented
For what it's worth, for stills anyway, I don't think the aperture will have much practical effect as a choice (no real change in depth of field). It's basically a tiny aperture or a more tiny aperture. I was wondering why they'd bother at all but the video explanation does make sense.
 
My guess is it’ll be automatic in the Apple Camera app and optionally manually adjustable in third party apps, and then Apple will enable it later in their app and make a big deal about it.

I think it’s a good feature to have generally, and is about the only thing I’ve heard of so far that I will even slightly regret not having over my 17 Pro. Not enough to have waited another year for though.
 
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The one thing that probably won't change is the bokeh looking more natural. Right now it's fixed at the wides possible aperture, the one that would be used anyway to shoot with a shallow depth of field. A variable aperture won't change that. If anything, I can imagine that the aperture would get slightly less wide, as a result of implementing such a mechanism. But I guess we'll have to wait and see...
 
If they find an effective solution to super high shutter speed in bright daylight, it will be revolutionary! Smartphones are at a place where their video quality is really good enough, but what they still can't compete on with mirrorless cameras is the smoothness of the video and that 180 degree shutter rule makes all the difference in how pleasant a video looks.

Others have tried variable aperture lenses but they have not been very effective.
 
Honestly I would prefer an ND filter rather than variable aperture, not sure how difficult that would be to implement. But usually the only reason you'd want a smaller aperture is to be able to shoot at a 1/50 or so shutter speeds. A ND filter would allow you to use a large aperture (still very small on the iPhone) and a slower shutter speed for standard motion blur.
 
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Thinking about other small cameras, like action cameras, I would not expect more than maybe one stop of light difference. I would expect the aperture would be reduced in size, 1.6 or 2.2 depending upon lens to something like F2 or F2.8 on the tele. I'll take it. I'm sure it would help some and would be better than a faster shutter in bright light. An ND filter would be nice. Not sure how they would fit that but it would be an advantage over just the aperture and in combination even better.
 
Now my question remains will these features from the “Pro” be brought to the more expensive “Ultra” especially since it’s already loosing the telephoto lens. Most rumors say the Ultra will get the same cameras as the base iPhone 18 but I just can’t see how Apple would sell this thing at a premium over the Pro while not even giving it the main lens’s and wide lens’s upgrades from the cheaper Pro models.
 
I think it’s worth noting that everything has said “variable aperture,” not “multiple apertures.”

It may be wishful thinking, but being able to adjust from the f/1.7 we have now through say f/11 or f/16 would be pretty incredible. At that point, the iPhone 18 P/PM really would be a second camera in your pocket.
 
Now my question remains will these features from the “Pro” be brought to the more expensive “Ultra” especially since it’s already loosing the telephoto lens. Most rumors say the Ultra will get the same cameras as the base iPhone 18 but I just can’t see how Apple would sell this thing at a premium over the Pro while not even giving it the main lens’s and wide lens’s upgrades from the cheaper Pro models.
Same way all the greenbubble foldables are sold. “Ok enough” cameras go in the foldables, the good cameras go in the regular phones.
 
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Honestly I would prefer an ND filter rather than variable aperture, not sure how difficult that would be to implement. But usually the only reason you'd want a smaller aperture is to be able to shoot at a 1/50 or so shutter speeds. A ND filter would allow you to use a large aperture (still very small on the iPhone) and a slower shutter speed for standard motion blur.
I discovered that the magnetic ND filters for my DJI Neo 2 drone fit over the main lens on my 15 Pro. It negates the use of a wide angle shot but really makes a difference for action blur, making moving water, for example much more realistic. Getting that shutter speed down in bright daylight in camera will make me finally upgrade, though I'm dreading the price increase.
 
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When they turn 24mm camera to 35mm one it would be a big deal. But currently the only advantage is that you can simulate how older and smaller sensors captured light (thus rely less on HDR). But the main lens is still awful for portraits, awful for landscapes, and only good sometimes to shoot close objects. It needs new focal length asap
 
My guess is it’ll be automatic in the Apple Camera app and optionally manually adjustable in third party apps, and then Apple will enable it later in their app and make a big deal about it.

I think it’s a good feature to have generally, and is about the only thing I’ve heard of so far that I will even slightly regret not having over my 17 Pro. Not enough to have waited another year for though.
Auto or manual, it’s still just for the main camera.

One of the main reasons I really appreciate the 17pro is that all the cameras are 48 mp, Because it bothered me a little that the 14pro only had 48 mp “best” camera on the main.

I think it would be a bother to have to remember that only the main camera on the 18pro gets the “best” treatment with the variable aperture.

(Maybe the 21 or 22 will have this variable aperture on all three cameras. And certainly reason to be happy with the 17pro till then)
 
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I think it’s worth noting that everything has said “variable aperture,” not “multiple apertures.”

It may be wishful thinking, but being able to adjust from the f/1.7 we have now through say f/11 or f/16 would be pretty incredible. At that point, the iPhone 18 P/PM really would be a second camera in your pocket.
Can you imagine the effects of diffraction on an image shot at f/11 or 16 with a sensor as small as the iPhone’s?
 
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