Sensor or lens dust?

Started 4 months ago | Discussions thread
BG454 Veteran Member • Posts: 7,331
Re: Sensor or lens dust?

Distinctly Average wrote:

These are more likely to be on the sensor. You can check that by taking off the lens and firing a shot at a white wall. You should see them. Spots on the sensor show up more as you stop down going from barely visible to horrible.

Dust on the lens rarely shows in images. Even splats of mud on the front barely show or show as flare rather than a spot. On the back of the lens it takes a very big spot to show on the image so you would notice it. However, try and keep the back of your lens as dust free as possible as any dirt there will find it’s way onto your sensor.

Dust on lens rarely shows on an image.
The smaller the f-stop, the more likely sensor dust will show up.

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