How to Photograph the Moon With an iPhone: Why It Comes Out as a White Blob, and How the Moon Preset Fixes It

You saw a huge orange moon over the rooftops, pointed your iPhone at it, and got a small white disc with no detail. It happens with every phone, and it is not a fault: the camera is doing what it was designed to do in a scene it was never designed for. This post explains why the moon comes out as a white blob, what a moon photo needs, and how the Moon preset in Night Cam: Stars & Aurora (free to try, iPhone only, iOS 18 or later) handles it. The posts on iPhone camera settings for the northern lights and fixing blurry, noisy aurora photos deal with too little light; the moon is the opposite problem.

Why the moon comes out as a white blob

The moon is a rock lit by direct sunlight: a daytime subject sitting in a sky that is almost black. A phone's automatic exposure looks at the whole frame, sees mostly darkness, and brightens the picture until the sky turns grey. The moon, already bright, is pushed far past white, and every crater is gone before the shutter closes.

Three things make it worse. The moon is small: on the 1x lens it covers a tiny patch of the sensor, so the meter barely notices it, and pinching to zoom only enlarges overexposed pixels. Night mode, which the Camera app switches on by itself in the dark, exists to brighten dark scenes, the one thing a moon photo does not need. And a long hand-held exposure blurs the disc into a halo.

The best iPhone camera settings for the moon, in principle

• Expose for the moon, not the sky. You want the picture far darker than the camera wants it: a black sky and a grey disc with texture. In the Camera app that means dragging the exposure slider down a long way; in a dedicated app, a preset that meters the moon itself.
• Use the longest lens you have. On iPhones with a dedicated telephoto lens, that lens puts far more pixels on the moon than the 1x camera. Digital zoom beyond it adds size, not detail.
• Hold still. The exposure is short compared with a star photo, so a tripod is optional, but bracing the phone on a wall or railing sharpens the edge of the disc. Flash off.

What Night Cam's Moon preset does

Night Cam is a night-sky camera with presets for the scenes the standard app gets wrong. The App Store listing describes the Moon preset in one line: "exposed for moonlight on the telephoto lens, so you get craters instead of a white blob". That is both fixes from the previous section: exposure set for a sunlit rock rather than the dark sky, and the telephoto lens so the moon fills more of the frame. Two general habits of the app help too: exposure is metered from your actual sky, so a lit terrace and a dark field both come out right, and every preset says how to hold the phone.

Step by step in the app

• Open Night Cam and check the Tonight screen. Alongside the aurora chance and cloud cover for the next 12 hours, it shows the moon phase and brightness for where you are, and suggests the preset worth opening tonight.
• Pick Moon. It uses the telephoto lens and sets the exposure for moonlight. Frame the moon; it does not need to be dead centre.
• Follow the holding advice on screen (tripod, wall or hand-held), tap, and keep still. The app runs a 3-second countdown and a steadiness check before long shots; if they appear, hold still until the shot is done.
• Open Photos. Pictures go straight to your Photos library and nowhere else. If the disc is still too bright, thin cloud or haze is probably scattering the moonlight.

Which moon phase shows the most detail

This surprises people: the full moon is the worst night for craters. Lit flat-on, the surface has no shadows and looks like a bright coin. Craters show best along the terminator, the line between the lit and dark halves, where the low sun throws long shadows off every rim, so a half or gibbous moon gives a strip of relief down the disc. General photography knowledge, not an app feature; the Tonight screen's phase reading tells you which night you have.

Moonrise, foreground and the City preset

A moon just above the horizon looks bigger and warmer than one overhead. The size is an illusion; the colour is real, because you are looking through far more atmosphere, which also blurs fine detail. Low moon for mood, high moon for craters.

The moon over a skyline is really two different photos. The Moon preset exposes for the moon and renders the city as dark shapes. The City preset, described in the listing as "skyline and lights from the balcony or terrace", exposes for the buildings, and the moon becomes a bright disc again. Decide which subject the picture is about and pick that preset.

Why you cannot get the moon and the stars in one shot

The brightness gap is too wide. An exposure that shows the moon's surface is a fraction of a second; one that shows stars is many seconds. Night Cam's Stars preset stacks 16 seconds of light into one frame, and any moon in it is a burned-out disc. Stars is for a dark, moonless sky; Moon is for the single bright object in it.

Free tier, price and privacy

• Your first 3 captures are free. Then Night Cam Pro is $4.99 once, or a Night Pass is $0.99 for 48 hours and does not renew. No subscription; the forecast is always free.
• No account, no ads, no analytics, no tracking. The App Store privacy label reads Data Not Collected; photos go only to your Photos library.
• 1.8 MB, iOS 18.0 or later, English plus 13 other languages, switchable from the flag at the top of the camera screen since version 1.0.1.

When a phone will not do it

A phone telephoto will not match a telescope or a long zoom on a proper camera; expect visible craters and seas, not a poster. Phones without a dedicated telephoto lens have less to work with, because the digital crop that stands in for one is soft. A window adds reflections, and a moon behind cloud is a glow, not a disc, whatever you do. Wait for a gap, step outside, brace the phone.

FAQ

• Why is the moon white in my photos? Automatic exposure brightens the dark sky and pushes the already bright moon past white. Expose for the moon instead, which is what the Moon preset does.
• Do I need a tripod? Not strictly; the exposure is short. Bracing on a wall or railing helps, and the preset tells you how to hold the phone.
• Which iPhone works? The listing says iPhone only, iOS 18.0 or later, and does not list models. The Moon preset uses the telephoto lens, so iPhones with a dedicated telephoto get the best result.
• Can I photograph a lunar eclipse? An eclipsed moon is far darker than a normal full moon and needs a much longer exposure. Night Cam has no dedicated eclipse mode; expect to experiment.