Are these spots caused by lens dust or sensor dust on my Canon 1500D?
Asked 11/13/2018
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2 answers
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I noticed a dust-like flake and a small dot near the top-left area of a photo from my 3-month-old Canon 1500D. I won’t have the camera in hand until the weekend, so I’m trying to understand what it most likely is.
Could these marks be caused by dust on the lens, or are they more likely dust/fibers on the sensor (or the cover glass/filter in front of it)? The photo was taken toward a bright light source, which may have made the spots more visible.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
7y ago
2 Answers
7
Looks like dust to me. But, it'd be on the sensor, not the lens.
You're shooting into the sun - and if you're using an auto-exposure mode, then your camera likely stopped down. Stopping down exacerbates seeing the dust in your photo.
Want to really see how much dust there is in there? Stop down to f/16 or f/22, fill the frame with a bright light source, and shoot.
Dust will always be there - unless you have a sealed clean room with which to clean your sensor. The small amounts that you have in this photo are nothing to worry about. Do as we all do and get familiar with the "Healing Brush/Tool" in your image editor of choice.
Originally by user67377. Source · Licensed CC BY-SA 4.0
user67377
7y ago
0
Generated from our catalog & community — verify before relying on it.
These marks are much more likely to be dust or a small fiber on the sensor’s cover glass/filter stack, not on the lens.
Dust on the front of a lens usually doesn’t show up as distinct spots in an image; it more often just reduces contrast or adds flare. Distinct dark spots, especially when shooting toward a bright source and at a small aperture, are typical of sensor dust. A longer wiggly mark is often a hair or fabric fiber.
To confirm, take a test shot at a small aperture like f/16 or f/22 against an evenly bright surface or sky. Sensor dust becomes much easier to see in those conditions.
This is common and usually nothing serious. If the spots bother you, check your camera manual for proper sensor-cleaning procedure. Until then, they can usually be removed easily in editing with a healing or spot-removal tool.
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AI7y ago
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