query: I changed my camera lens while my camera was on
positive_passages.docid: 68909
positive_passages.text: Is it dangerous to do a lens change with power on?
negative_passages.docid: 137893
negative_passages.text: A half covered lens
negative_passages.docid: 144985
negative_passages.text: How to render parts of the camera view and merge afterwards?
negative_passages.docid: 33211
negative_passages.text: How do I diagnose the source of focus problem in a camera?
negative_passages.docid: 9033
negative_passages.text: What is aperture, and how does it affect my photographs?
negative_passages.docid: 62822
negative_passages.text: How can lens cause consistent front or back focus?
negative_passages.docid: 78500
negative_passages.text: Can I desaturate incoming light using a filter or series of filters mounted to the lens?
negative_passages.docid: 139331
negative_passages.text: Why doesn't exposure change when changing focal length?
negative_passages.docid: 39977
negative_passages.text: Blown out blue/red light making photos look out of focus
negative_passages.docid: 106254
negative_passages.text: What's the difference between using black and white mode in-camera, and converting in post?
negative_passages.docid: 98467
negative_passages.text: How to get back to photography after having a long break?
negative_passages.docid: 100651
negative_passages.text: Objects disappear when looking through camera
negative_passages.docid: 88267
negative_passages.text: Should I upgrade my body or lens first?
negative_passages.docid: 94456
negative_passages.text: Why does my one lens have different exposure (t-stop) than my other lens?
negative_passages.docid: 4815
negative_passages.text: When should I upgrade my camera body?
negative_passages.docid: 137089
negative_passages.text: Front element shattered, can I have my lens repaired?
negative_passages.docid: 96529
negative_passages.text: How can I calculate magnification ratio I get by reversing a lens?