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2. Macro photography - Wikipedia

   en.wikipedia.org/wiki/Macro_photography

   Increasingly, macro photography is accomplished using compact digital cameras and small-sensor bridge cameras, combined with a high powered zoom lens and (optionally) a close-up diopter lens added to the front of the camera lens. The deep depth of field of these cameras is an advantage for macro work.

3. Close-up lens - Wikipedia

   en.wikipedia.org/wiki/Close-up_lens

   1 - Close-up lens. 2 - Camera objective lens (set to infinity). 3 - Camera. 4 - Film or CCD plane. In photography, a close-up lens (sometimes referred to as close-up filter or a macro filter) is a simple secondary lens used to enable macro photography without requiring a specialised primary lens.

4. Digital camera - Wikipedia

   en.wikipedia.org/wiki/Digital_Camera

   Digital camera. Front and back of Canon PowerShot A 95 (c.2004), a once typical pocket-sized compact camera, with mode dial, optical viewfinder, and articulating screen. A digital camera, also called a digicam, [ 1] is a camera that captures photographs in digital memory. Most cameras produced today are digital, [ 2] largely replacing those ...

5. Four Thirds system - Wikipedia

   en.wikipedia.org/wiki/Four_Thirds_system

   Four Thirds logo. The Four Thirds System is a standard created by Olympus and Eastman Kodak for digital single-lens reflex camera (DSLR) design and development. [ 1] Four Thirds refers to both the size of the image sensor (4/3") as well as the aspect ratio (4:3). The Olympus E-1 was the first Four Thirds DSLR, announced and released in 2003.

6. Micro Four Thirds system - Wikipedia

   en.wikipedia.org/wiki/Micro_Four_Thirds_system

   The Micro Four Thirds system ( MFT or M4/3 or M43) (マイクロフォーサーズシステム, Maikuro Fō Sāzu Shisutemu) is a standard released by Olympus Imaging Corporation and Panasonic in 2008, [ 1 ] for the design and development of mirrorless interchangeable lens digital cameras, camcorders and lenses. [ 2 ] Camera bodies are ...

7. Pentax (lens) - Wikipedia

   en.wikipedia.org/wiki/Pentax_(lens)

   These lenses are coated with glazes that make the lenses more suitable for digital cameras. However, they also support older 35mm camera formats, as they provide full frame coverage. The series originally consisted only of two macro lenses – a 50mm and a 100mm – which both featured an aperture ring.