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  2. Canon TLb - Wikipedia

    en.wikipedia.org/wiki/Canon_TLb

    Canon TLb. Canon TLb. The Canon TLb is a 35 mm single-lens reflex camera introduced by Canon in September 1974. [1] [2] It features a Canon FD lens mount, and is also compatible with Canon's earlier FL-mount lenses in stop-down metering mode. The TLb was a cheaper version of the Canon FTb for the export market, as was the slightly later TX.

  3. Colorado Territorial Correctional Facility - Wikipedia

    en.wikipedia.org/wiki/Colorado_Territorial...

    Colorado Territorial Correctional Facility (CTCF), colloquially known simply as "Territorial," is a medium security prison in Cañon City, Colorado. CTCF is the oldest prison in the Colorado DOC system. It was built in 1871 as a territorial prison and became a state prison in 1876. The Colorado DOC system only has two infirmaries, one of which ...

  4. Flat-field correction - Wikipedia

    en.wikipedia.org/wiki/Flat-field_correction

    This variation is called vignetting, and can be corrected by selectively brightening the perimeter of the image. Flat-field correction ( FFC) is a digital imaging technique to mitigate the image detector pixel-to-pixel sensitivity and distortions in the optical path. It is a standard calibration procedure in everything from personal digital ...

  5. Canon AE-1 - Wikipedia

    en.wikipedia.org/wiki/Canon_AE-1

    It uses an electronically controlled, electromagnet horizontal cloth focal plane shutter, with a speed range of 2 to 1/1000 second plus Bulb and flash X-sync of 1/60 second. The camera body is 87 mm tall, 141 mm wide, and 48 mm deep; it weighs 590 g. Most are black with chrome trim, but some are all black. The AE-1 is a historically significant ...

  6. Prism (optics) - Wikipedia

    en.wikipedia.org/wiki/Prism_(optics)

    Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.

  7. Canon FT QL - Wikipedia

    en.wikipedia.org/wiki/Canon_FT_QL

    The Canon "quick loader" in a Canon FTb. FT QL with Canon FD 135mm f/3.5 lens. The Canon FT QL is a 35mm single-lens reflex camera introduced by Canon Inc. in March 1966. It has a Canon FL lens mount compatible with the large range of FL series lenses. The FT can also operate the later Canon FD series lenses in stop-down mode, but the earlier R ...

  8. Centennial Correctional Facility - Wikipedia

    en.wikipedia.org/wiki/Centennial_Correctional...

    604. Opened. 1980. Managed by. Colorado Department of Corrections. Centennial Correctional Facility (CCF) is a prison located in the East Canon complex [1] in Fremont County, just east of Cañon City, Colorado. CCF consists of two separate buildings, North and South. [2] The South facility, opened in 2011, is a Level V maximum security facility.

  9. K correction - Wikipedia

    en.wikipedia.org/wiki/K_correction

    K correction. K correction converts measurements of astronomical objects into their respective rest frames. The correction acts on that object's observed magnitude (or equivalently, its flux ). Because astronomical observations often measure through a single filter or bandpass, observers only measure a fraction of the total spectrum, redshifted ...