https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Smudge-showing-up-on-images-Canon-EOS-t6i/m-p/445619#M107387 <P>This looks like a hair or similar debris near your sensor or perhaps rear element of the lens.</P><P>If you have a rocket blower or similar hand-squeezable air blower, use that to remove any debris from the sensor and/or rear element of the lens.</P><P>In terms of why the debris becomes more evident at narrower apertures, this is because as wider apertures, the depth of field is narrow and thus the debris ends up being more blurred and less visible.</P> Mon, 13 Nov 2023 03:08:34 GMT rs-eos 2023-11-13T03:08:34Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Smudge-showing-up-on-images-Canon-EOS-t6i/m-p/445618#M107386 <P>This smudge keeps showing up on my images. It is less noticeable when I shoot with f4 aperture. It is prominent when I use f6-f20. How can I fix this? Thank you (canon eos t6i)<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="smudge.png" style="width: 999px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/46731i88CF71E7ED6B8430/image-size/large?v=v2&amp;px=999" role="button" title="smudge.png" alt="smudge.png" /></span></P> Mon, 13 Nov 2023 18:02:04 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Smudge-showing-up-on-images-Canon-EOS-t6i/m-p/445618#M107386 modver110 2023-11-13T18:02:04Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Smudge-showing-up-on-images-Canon-EOS-t6i/m-p/445619#M107387 <P>This looks like a hair or similar debris near your sensor or perhaps rear element of the lens.</P><P>If you have a rocket blower or similar hand-squeezable air blower, use that to remove any debris from the sensor and/or rear element of the lens.</P><P>In terms of why the debris becomes more evident at narrower apertures, this is because as wider apertures, the depth of field is narrow and thus the debris ends up being more blurred and less visible.</P> Mon, 13 Nov 2023 03:08:34 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/Smudge-showing-up-on-images-Canon-EOS-t6i/m-p/445619#M107387 rs-eos 2023-11-13T03:08:34Z