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Wratten numbers are a labeling system for optical filters, usually for photographic use comprising a number sometimes followed by a letter. The number denotes the color of the filter, but is arbitrary and does not encode any information (the 80A–80D are blue, the next filters in numerical order, 81A–81EF, are orange); letters almost always ...
Infrared Color Photography Mahatma Gandhi. Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near- infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating.
Photographic filter. Four photographic filters (clockwise from top-left): an infrared hot mirror filter, a polarizing filter, and a UV filter. The larger filter is a polarizer for Cokin-style filter mounts. In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path.
May 1—WILKES-BARRE — If Gov. Josh Shapiro and Lieutenant Governor Austin Davis are to be successful in getting more funding approved for fighting gun violence, stories like the one told on ...
Full-spectrum photography is a subset of multispectral imaging, defined among photography enthusiasts as imaging with consumer cameras the full, broad spectrum of a film or camera sensor bandwidth. In practice, specialized broadband/full-spectrum film captures visible and near infrared light, commonly referred to as the "VNIR".
Anti-aliasing filter. An anti-aliasing filter ( AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem over the band of interest. Since the theorem states that unambiguous reconstruction of the signal from its samples is possible when the power of frequencies above ...
Public Service Loan Forgiveness (PSLF) is the most common type of student debt forgiveness plan. Through this program, your Direct Loan debt from nursing school could be forgiven if you: Have made ...
After "Bridgerton" Season 2, Season 3 of "Sweet Tooth" was the 10th TV title. On the film side, "Hit Man" was most-watched for the second week in a row with 636.2 million minutes watched.