Can the Eclipse Ruin Your Phone Camera?

Yes, pointing your phone camera directly at the sun during an eclipse can damage the image sensor, though the risk is lower than for your eyes. The concentrated sunlight can burn the sensor’s pixels, leaving permanent bright or dead spots in your photos.

What Actually Happens to Your Phone

Your phone’s camera has a small lens that focuses light onto a digital sensor. When you aim it at the sun, even for a few seconds, the lens acts like a magnifying glass, concentrating intense solar radiation onto a tiny area of the sensor. This can physically damage the sensor’s photodiodes, causing them to malfunction permanently. The result is often a visible purple or white spot in the same location on every future photo you take. The damage is not always immediate; it can accumulate over multiple exposures, and the full effect may not be noticeable until you review images later.

Unlike your eyes, which have a blink reflex and pain response, a phone sensor has no such protection. It will happily stare at the sun until something breaks. The risk is highest during the partial phases of an eclipse, when the sun is still bright, but even during totality—when the moon fully covers the sun—the brief moment of darkness is safe for photography, but you must remove any solar filter before totality begins.

Why Solar Filters Are Essential

A solar filter is a piece of specially designed material that blocks out about 99.999% of sunlight before it reaches your camera’s lens. It is the same type of filter used for telescopes and binoculars, and it is essential for safe eclipse photography. Without it, you are essentially pointing a magnifying glass at your phone’s sensor. For smartphones, you can buy a clip-on solar filter that fits over the camera lens, or you can hold a piece of solar filter film in front of the lens. The filter must be rated for solar viewing (ISO 12312-2 is the standard for eclipse glasses and handheld filters), and it must be completely free of scratches or holes.

Do not use a regular neutral density (ND) filter, a polarizing filter, or even a welding mask, as these do not block enough of the infrared and ultraviolet radiation that causes damage. Only a certified solar filter is safe.

How to Take a Safe Photo (Step-by-Step)

Attach a certified solar filter to your phone’s camera lens before you point it at the sun.
Use a tripod or a stable surface to prevent camera shake—the sun is small in the frame, and any movement will blur the image.
Set your phone’s exposure manually (tap and hold on the sun to lock focus and exposure, then drag the exposure slider down to darken the image).
Take the photo during the partial phases with the filter on. During totality, remove the filter, take your shots of the corona, then put the filter back on before the sun reappears.
After the eclipse, check your photos for any unusual spots or lines—if you see them, your sensor may have been damaged.

What If You Don’t Have a Filter?

If you don’t have a solar filter, the safest option is to not point your phone at the sun at all. You can still photograph the eclipse indirectly: photograph the ground under a tree to capture the crescent-shaped shadows, or photograph a pinhole projection of the eclipse onto a white card. These methods are completely safe for your phone and can produce beautiful images. Another option is to use your phone to take a photo of a friend’s eclipse glasses or a projected image on a screen, which avoids direct sun exposure entirely. Remember that the sun is just as dangerous to your phone’s sensor as it is to your eyes—if you wouldn’t look at it without proper eye protection, don’t point your camera at it without a filter.

Common Misconceptions and Mistakes

One common myth is that the phone’s autofocus or image stabilization will protect the sensor. They won’t—these features adjust the lens position, but they don’t reduce the intensity of the light hitting the sensor. Another misconception is that using a lower resolution or a smaller aperture will reduce the risk. While a smaller aperture (like f/2.8 vs. f/1.8) does let in less light, the sun is still bright enough to cause damage. Additionally, some people think that taking a video is safer than a photo, but the sensor is exposed just as long, and the heat buildup can be even worse because the sensor is continuously active. Finally, don’t assume that a cheap phone is less vulnerable—all digital sensors are susceptible to solar damage.

What to Do If You Think Your Phone Is Damaged

If you suspect your phone’s camera was damaged during an eclipse, first take a photo of a plain white wall in good lighting. If you see a persistent spot or line in the same place in every photo, your sensor is likely burned. Unfortunately, this is not a software issue that can be fixed with a reset or an app. The only permanent fix is to replace the camera module or the entire phone, which may not be cost-effective. Some phones have a camera sensor that is covered by warranty, but solar damage is usually considered accidental and not covered. If the damage is minor, you might be able to hide it by cropping your photos or using a healing tool in editing software, but the spot will always be there. To avoid this situation, always use a solar filter.

Frequently Asked Questions

Can I use my phone without a filter during totality?

Yes, during the brief period of totality (when the moon completely covers the sun), it is safe to remove the filter and photograph the corona. However, you must put the filter back on as soon as the sun starts to reappear. The moment of totality is the only time you can point your phone directly at the sun without a filter.

Will the flash protect my phone?

No, the flash has no effect on the sun’s intensity. It is not designed to block or reduce sunlight, and it will not prevent damage to your sensor. In fact, using the flash is useless and may confuse your camera’s exposure settings, making the image worse.

Can I use eclipse glasses as a filter for my phone?

It is not recommended. Eclipse glasses are designed to be held in front of your eyes, not your camera lens. They are not optically flat, so they will produce blurry images, and they may not cover the entire lens properly, allowing stray sunlight to enter from the sides. A certified solar filter designed for cameras is the proper tool.

Are some phone models more resistant to solar damage?

There is no official rating for solar resistance in phone cameras. All sensors are vulnerable, though the exact threshold for damage varies by sensor size and lens design. Generally, phones with larger sensors (like flagship models) may be more susceptible because they have larger pixels that absorb more energy, but any phone can be damaged.

What is the safest way to photograph the eclipse with a smartphone?

The safest way is to use a certified solar filter that clips onto your phone’s lens. If you don’t have one, photograph the eclipse indirectly by capturing the crescent shadows on the ground or a pinhole projection. Never point your phone at the sun without a filter, except during totality.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

More cards in this drawer

The whole Numbers and Powers drawer →