query: Better Circular Polarizer for Sigma 150-500mm APO HSM
positive_passages.docid: 29268
positive_passages.text: How do I choose a polarizer?
negative_passages.docid: 18161
negative_passages.text: How would one use filters with the "bulb"-like shape front element lenses?
negative_passages.docid: 90109
negative_passages.text: Are cropped images from a full-frame sensor equal quality to full APS-C images despite the lower resolution?
negative_passages.docid: 7818
negative_passages.text: How can I get dramatic shallow DOF with a kit lens?
negative_passages.docid: 114324
negative_passages.text: Is there any protection ring available for reversed lenses?
negative_passages.docid: 7549
negative_passages.text: Best lens for taking pictures of surfers
negative_passages.docid: 5740
negative_passages.text: What is a good wide-angle prime lens for Nikon DX (APS-C) format?
negative_passages.docid: 131461
negative_passages.text: Circular polarizing filter - slim or regular?
negative_passages.docid: 56078
negative_passages.text: How can I get the axes of the polarization ellipse from the Jones vector of the light?
negative_passages.docid: 125032
negative_passages.text: Phase added on reflection at a beam splitter?
negative_passages.docid: 48715
negative_passages.text: Photographic techniques to avoid chromatic aberration?
negative_passages.docid: 31515
negative_passages.text: How to create a circular black gradient mask
negative_passages.docid: 126391
negative_passages.text: Three polarizers, 45° apart
negative_passages.docid: 80997
negative_passages.text: What advantages does manual mode have over aperture priority mode?
negative_passages.docid: 21744
negative_passages.text: Focal length of an ellipse and related results
negative_passages.docid: 26448
negative_passages.text: How does a DX-format sensor support FX lenses?
negative_passages.docid: 116428
negative_passages.text: How do I use a Macro Lens for Jewelry Photography?