![]() ![]() You likely won't see even large pieces of dust when shooting at very wide apertures, so be sure to choose a narrow one. On the camera, set your exposure mode to Av, ISO to 100 and - very important - set the aperture to a very narrow - at least to f/22. You may want to turn off IS if your lens is so-equipped though it won't hurt to leave it on. I generally use infinity focus and often use a white kitchen cabinet as my subject. We want to see the dust - not the subject - in the picture.Īdding motion blur to your test image is all-the-better. #POWDER LENS BLUR MANUAL#Set the lens to manual focus and set the focus to to make your selected subject completely OOF (Out of Focus). To check for dust, mount a 50mm or longer lens on your DSLR - select 50mm or longer if you are using a zoom lens.įind an evenly-light-colored, evenly-lit background for a test shot - a blue sky (works great), a white wall, a piece of paper. That's what my face looks like when I see a picture like this. To know if your sensor is dirty, you need to know what sensor dust looks like in an image - see below for a 100% sample crop from the above photo. Though while logical at first, it takes a sizeable piece dust on/in a lens to show up as a prominent spot in a picture - especially if it is on the front lens element. Some people know they have sensor dust while others only know that there are spots in their images. One of the most-frequently asked questions I receive relates to sensor dust and cleaning. Just Arrived Used Gear at B&H: Canon RF 100-500mm, RF 16mm, EOS R5, EOS R5 C Kit, C70.Now Available: Benro Polaris Smart Electric Tripod Head, Including 3-Axis Astro Edition.First Looks at Canon RF 1200mm F8 L IS USM Lens Image Quality.Canon to Build New Semiconductor Lithography System Manufacturing Facilities in Japan.In Today's B&H Deal Zone: Angelbird 2TB AV Pro CFexpress 2.0 Type B Memory Card – Only $519.99 (Save $380.00), Oben, Mitakon, Intel, More. #POWDER LENS BLUR PORTABLE#
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