How much does sensor cleaning cost?

Typically $50–$80 for a professional wet clean of a digital body, often same-day or while you wait. Many shops offer a clean-and-check that also inspects the shutter and lens mount.

How do I know if it is dust on the sensor or the lens?

Sensor dust stays in the same spot on every frame regardless of which lens you use; lens dust or marks move or do not show at all. Shoot a plain bright surface at f/16–f/22 and look for fixed dark spots — those are on the sensor.

Is DIY sensor cleaning safe?

For light dust, a blower and the camera's cleaning mode are safe and often enough. Wet cleaning with a swab is safe if you use the correct swab size and solution and work carefully — but a mistake can scratch the sensor's filter stack, so if you are not confident, a $60 pro clean is cheap insurance.

Camera Sensor Cleaning: What to Expect

Those grey smudges that appear in the same place on every photo — most often in the sky, at small apertures — are dust or oil on your camera's sensor. It is one of the most common and most fixable digital-camera issues, and it is worth understanding before you either ignore it or reach for a swab.

Dust vs. oil

Dust gets in every time you change a lens and settles on the sensor's protective filter. A blower and the camera's built-in cleaning cycle handle most of it. Oil spots — tiny droplets flung from the shutter or aperture mechanism, common on some bodies early in their life — are stickier and usually need a wet clean to remove. Both look similar in your photos; the difference is how hard they are to shift.

How to confirm it's the sensor

Set the camera to aperture priority, stop down to f/16–f/22, and photograph a plain, evenly-lit surface — a clear sky or a white wall — slightly defocused. Fixed dark spots in the same position on every frame, regardless of lens, are on the sensor. If they move or vanish when you change lenses, they are not.

Why the built-in cleaning mode isn't always enough

The sensor-shake cleaning cycle vibrates loose dust off, and it works well for exactly that. It does nothing for oil or for dust that has welded itself on with humidity. When cleaning mode and a blower don't clear the spots, the next step is a wet clean — either yours or a professional's.

DIY vs. pro

Wet cleaning is not black magic: a correctly-sized sensor swab and a drop of the right solution, wiped across the sensor once in each direction under good light. Done carefully it is safe, and many photographers do their own. The risks are using the wrong swab size, too much fluid, or grinding a grit particle across the filter — any of which can leave a mark. If your hands aren't steady or the body is valuable, a professional clean at $50–$80 — often same-day — is cheap peace of mind, and many shops throw in a shutter-and-mount check.

Whichever you choose, do it before an important shoot rather than after: a clean sensor saves hours of spot-removal in editing later.

Common questions

How much does sensor cleaning cost?: Typically $50–$80 for a professional wet clean of a digital body, often same-day or while you wait. Many shops offer a clean-and-check that also inspects the shutter and lens mount.
How do I know if it is dust on the sensor or the lens?: Sensor dust stays in the same spot on every frame regardless of which lens you use; lens dust or marks move or do not show at all. Shoot a plain bright surface at f/16–f/22 and look for fixed dark spots — those are on the sensor.
Is DIY sensor cleaning safe?: For light dust, a blower and the camera's cleaning mode are safe and often enough. Wet cleaning with a swab is safe if you use the correct swab size and solution and work carefully — but a mistake can scratch the sensor's filter stack, so if you are not confident, a $60 pro clean is cheap insurance.