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2. Photographic filter - Wikipedia

   en.wikipedia.org/wiki/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.

3. Digital single-lens reflex camera - Wikipedia

   en.wikipedia.org/wiki/Digital_single-lens_reflex...

   A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the sensor. The reflex design scheme is the primary difference between a DSLR and other digital cameras.

4. Pellicle mirror - Wikipedia

   en.wikipedia.org/wiki/Pellicle_mirror

   The pellicle mirror causes an up to 1/3-stop loss of light at the receptor, and a corresponding 2-stop loss of light in the viewfinder; The mirror has to be kept perfectly clean, or the light sensor and other electronics (as well as the image quality) will suffer. Owing to its thinness, the pellicle mirror is fragile, making it difficult to clean.

5. Shop the latest Trends and Deals - AOL.com

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   Get lifestyle news, with the latest style articles, fashion news, recipes, home features, videos and much more for your daily life from AOL.

6. Amazon's No. 1 bestselling eyeglass cleaning kit is on sale - AOL

   www.aol.com/lifestyle/koala-eyeglass-cleaner...

   A much better way to disappear dirt, oil, smears and tiny specks of lint is the megapopular Koala Eyeglass Lens Cleaner kit. This Amazon bestseller includes a bottle of alcohol-free cleaner and a ...

7. Dust reduction system - Wikipedia

   en.wikipedia.org/wiki/Dust_reduction_system

   Every time lenses are changed, dust may enter the camera body and settle on the image sensor. Digital single-lens reflex cameras (DSLR) are particularly vulnerable to this issue, since the interior of the camera is exposed during lens changes unlike other forms of digital cameras, and the image sensor is fixed, unlike a film camera. Even the ...