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2. List of Canon products - Wikipedia

   en.wikipedia.org/wiki/List_of_Canon_products

   EF-S lenses are built for APS-C 1.6x crop sensors, so they only work with models that use this sensor size. When EF-S lenses are used on a 35mm (full frame) camera the back element will hit the mirror assembly or cause substantial vignetting since the sensor is bigger than the image produced by the lens.

3. Canon PowerShot G - Wikipedia

   en.wikipedia.org/wiki/Canon_PowerShot_G

   Canon G12 records videos up to 720p HD quality, G15 1080p HD and G1 X 1080p. G15 and G1 X do allow to use zoom and autofocus during video recording. Many of the changes made allowed the G7 to be significantly slimmer than previous G series cameras (e.g., the thickness of the G7 is 4.25 cm while the G6 is 7.3 cm), making it more portable.

4. File:Taman Sukasada Ujung 48.JPG - Wikipedia

   en.wikipedia.org/wiki/File:Taman_Sukasada_Ujung...

   Canon PowerShot G15: Exposure time: 1/1,250 sec (0.0008) F-number: f/6.3: ISO speed rating: 400: Date and time of data generation: 07:26, 1 April 2016: Lens focal length: 6.1 mm: Orientation: Normal: Horizontal resolution: 180 dpi: Vertical resolution: 180 dpi: File change date and time: 07:26, 1 April 2016: Y and C positioning: Co-sited: Exif ...

5. File:How an AHEC Linkage Works.jpg - Wikipedia

   en.wikipedia.org/wiki/File:How_an_AHEC_Linkage...

   Canon PowerShot G15: Exposure time: 1/15 sec (0.066666666666667) F-number: f/2: ISO speed rating: 400: Date and time of data generation: 01:10, 18 January 2016: Lens focal length: 6.891 mm: Orientation: Normal: File change date and time: 01:10, 18 January 2016: Y and C positioning: Co-sited: Exif version: 2.3: Date and time of digitizing: 01:10 ...

6. Anti-reflective coating - Wikipedia

   en.wikipedia.org/wiki/Anti-reflective_coating

   Uncoated glasses lens (top) versus lens with anti-reflective coating. The reflection from the coated lens is tinted because the coating works better at some wavelengths than others. An antireflective , antiglare or anti-reflection ( AR ) coating is a type of optical coating applied to the surface of lenses , other optical elements, and ...

7. Optical coating - Wikipedia

   en.wikipedia.org/wiki/Optical_coating

   Optically coated mirrors and lenses. An optical coating is one or more thin layers of material deposited on an optical component such as a lens, prism or mirror, which alters the way in which the optic reflects and transmits light. These coatings have become a key technology in the field of optics.