query: There are many red and black spots in my photos,what are those?
positive_passages.docid: 146441
positive_passages.text: Why is my camera showing a lot of stuck red and white pixels?
negative_passages.docid: 131472
negative_passages.text: What caused this pattern of lines (moire?) in this picture I scanned from a book?
negative_passages.docid: 83923
negative_passages.text: What causes multiple colored patches on a wet road?
negative_passages.docid: 104028
negative_passages.text: Why are my night photographs always blurry?
negative_passages.docid: 32843
negative_passages.text: Annoying lines ruining the image
negative_passages.docid: 11836
negative_passages.text: Is it normal for a fast prime to exhibit purple fringing in middle of the image?
negative_passages.docid: 9033
negative_passages.text: What is aperture, and how does it affect my photographs?
negative_passages.docid: 121397
negative_passages.text: Why is my render noisy/blotchy?
negative_passages.docid: 81307
negative_passages.text: How can I tell if a photo is real or faked?
negative_passages.docid: 156217
negative_passages.text: What causes this 'bokeh crop' effect?
negative_passages.docid: 111979
negative_passages.text: Small, faint circle in corner of image. What is it?
negative_passages.docid: 79484
negative_passages.text: What is noise in a digital photograph?
negative_passages.docid: 111436
negative_passages.text: What could cause this visible artifact which seems to a be a glowing inverse of something outside of the frame overlayed on this photograph?
negative_passages.docid: 83462
negative_passages.text: What causes pixelation, blurred graphics on a web banner?
negative_passages.docid: 67071
negative_passages.text: What is this two color photo effect called and how to make it?
negative_passages.docid: 93129
negative_passages.text: Can a camera be affected by fungus?
negative_passages.docid: 108640
negative_passages.text: Why an I getting Err 01 with my Canon camera and lens?