Image Tech

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George Schaub Posted: Nov 16, 2011 1 comments

On-board image processors have become more powerful and diverse in their functions, and cameras like the Ricoh GR Digital IV ($649) offer more than just point and shoot still and video recording. Indeed, the Ricoh seems designed to appeal to those who would rather have their special effects in hand than take the time to apply them later. But the camera offers more than just tricks, though there are plenty of those, and its portability, ease of use and flexibility might appeal to those who want to go beyond cell phone snapshots and effects. Its fast, fixed focus lens, aperture- and shutter-priority exposure modes and a host of Scene modes that go beyond the norm make it a fascinating study in the state of photography today.

Edited by George Schaub Posted: Feb 14, 2013 0 comments

The Samsung Galaxy is a new type of camera that’s more like a tablet computer with an integrated camera system. However, rather than using a small low resolution camera module (like smart phones and tablet computers) it offers a “real” camera module with an ultra zoom lens. This lens system offers a 21x zoom lens with a focal length of 23 to 483mm (35mm film equivalent).

George Schaub Posted: Jul 06, 2011 0 comments

The Samsung NX11 is the follower of the NX10. Like the NX10 it is a compact system camera with an APS-C-sized sensor and a nominal resolution of 14.6 MP. The most important difference to the NX11 is the “i-Function” technology, which allows the user to set up image parameters very quickly and intuitively. The NX11 offers this technology right out of the box; the NX10 now offers “i-Function” via a firmware update.

Edited by George Schaub Posted: Mar 22, 2013 Published: Feb 01, 2013 0 comments

The Samsung NX20 is a mirrorless system camera with very high sensor resolution. Just like the Samsung NX200 it uses an APS-C-sized sensor and offers a resolution of 20MP. In contrast to the NX200 it uses an SLR-like body design and an electronic viewfinder with very high resolution. The EVF has 1.44 million RGB dots and offers a very brilliant and sharp image, which makes manual focusing very comfortable. In addition, the NX20 has a large AMOLED swivel screen on the back with a resolution of 614,000 RGB dots.

George Schaub Posted: May 09, 2012 Published: Apr 01, 2012 6 comments

The Samsung NX200 is a Compact System Camera (CSC) with an interchangeable lens system. It is based on an APS-C-sized sensor and Samsung’s NX-mount system, which currently comprises nine Samsung lenses. The range of lenses will be expanded this year, with the latest being the Samsung 85mm f/1.4 ED SSA, which is a fast portrait lens that supports Samsung’s i-Function technology. The lens ring—which is normally used for manual focusing—can be used for i-Function settings, a very handy feature that can be programmed by the photographer to change various settings right from the lens.

Edited by George Schaub Posted: Nov 25, 2014 0 comments

The Samsung NX30 is a mirrorless, Compact System Camera (CSC) with a classic SLR design. It offers an electronic viewfinder with 2.36 million RGB dots instead of an optical SLR viewfinder. The viewfinder offers an exceptionally brilliant, sharp, and detail-rich image, which easily allows the photographer to shoot in manual focusing mode.

Edited by George Schaub Posted: Jan 31, 2014 Published: Dec 01, 2013 1 comments

The NX300 follows the company’s NX210 and updates many features. Its new WLAN system, for example, now supports 2.4GHz and 5GHz systems for better data transfer. (Note: 5GHz systems eliminate interference better than the older 2.4GHz standard.) The free Wi-Fi connection can be used with remote control software on Android or Apple iOS smartphones, for auto backup on the PC, and for various mobile link functions, like sharing images by e-mail or in social networks.

Edited by George Schaub Posted: Apr 12, 2013 Published: Mar 01, 2013 0 comments

The Sigma DP2 Merrill is dedicated to Dick Merrill (1949-2008), a photographer and engineer who developed/invented the Foveon sensor technology. The camera is based on former DP compact Sigma cameras, but uses the newest generation of the Foveon X3 sensor. This sensor records all three RGB values for every single pixel and has an image resolution of 4704x3136, or 14.75MP. Because of the multiplication of three RGB layers, the camera gains a “resolution” of 44.25MP. Officially, Sigma specifies the resolution of the sensor even higher: the spec sheet uses the gross resolution with 4800x3200 pixels (x three layers) and therefore indicates that the camera has a resolution of 46MP.

Edited by George Schaub Posted: May 17, 2013 1 comments

The Sigma DP3 Merrill is the latest Sigma camera with the new Foveon sensor. With this sensor, the camera can capture complete RGB information for every single pixel and doesn’t need to interpolate colors like all other digital cameras with Bayer pattern sensors. The APS-C sized sensor offers a resolution of 14.7MP, referred to by Sigma as equivalent to 45MP resolution of a standard sensor ((4704 x 3136 pixel x 3 RGB data per pixel).

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George Schaub Posted: Sep 30, 2011 2 comments

The SD1 is Sigma’s new flagship SLR system. It uses a brand new sensor with Foveon technology and a nominal resolution of 14.8 MP. This means that the camera is able to record RGB information for every single pixel. Standard digital cameras use sensors with the “classic” Bayer pattern, which means that every single pixel detects only one color information (red, green or blue) and then must undergo color interpolation.

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Edited by George Schaub Posted: Jan 18, 2013 Published: Dec 01, 2012 0 comments

The Sony (alpha) A57 is based on Sony’s SLT viewfinder system that uses a fixed and semi-translucent mirror. This enables viewing via a live preview on the LCD screen on the back or through the electronic viewfinder. In addition, the mirror reflects the image onto an AF sensor based on the classic phase detection system used by “normal” SLR cameras. The AF sensor works continuously because there is no moving mirror system to cover the sensor when the picture is taken. This aids in continuous shooting speed and when recording videos.

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Edited by George Schaub Posted: Jun 22, 2012 Published: May 01, 2012 5 comments

The Sony A65 is a feature-reduced version of the company’s A77 model. It offers a nominal resolution of 24MP (just like the A77). The A65 uses Sony’s SLT system, which combines a semi-translucent mirror system and an electronic viewfinder. The semi-translucent mirror reflects a part of the light to the Phase Detection AF sensor, which is located in the penta-prism bulge on the top of the body and allows for very fast focusing. At the same time, the image sensor is able to generate a digital live preview for the LCD on the back or on the mini LCD screen of the ELV. Both monitor systems use high-resolution LCDs. The large monitor on the back offers 921,600 RGB dots; the AMOLED ELV offers 2.3 million dots for a brilliant and crisp image.

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Edited by George Schaub Posted: Apr 18, 2013 Published: Mar 01, 2013 0 comments

The Sony A37 is an SLT system with a fixed and translucent mirror. Because of this setup it is able to produce a Live View image even while recording still images or shooting video. At the same time, the camera is able to use its Phase Detection AF system because the mirror reflects the image onto the AF sensor. This allows the use of the AF system even in continuous shooting mode. The camera offers a high-speed burst mode of up to 7 frames per second, which is a very high result for an entry-level system.

Edited by George Schaub Posted: Jun 24, 2014 Published: May 01, 2014 0 comments

The Sony A7 and A7R are the first mirrorless system cameras with a full-frame sensor. The A7 offers a sensor size of 35.8x23.9mm and a resolution of 24MP, while the A7R has a slightly larger sensor at 35.9x24.0mm and 36MP resolution. Both cameras use the E-mount lens system that was introduced with Sony’s NEX cameras. Because NEX cameras use APS-C-sized sensors all previous E-mount lenses have smaller image circles, thus the full-frame models require new E-mount lenses, which cover the larger image circle of a full-frame sensor.

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Edited by George Schaub Posted: Jun 14, 2013 Published: May 01, 2013 1 comments

The new SLT-A99 is Sony’s first full-frame camera with an electronic viewfinder. While former Sony full-format cameras like the A900 or A850 offered a standard SLR system, the new A99 offers an electronic viewfinder with extremely high resolution (2.3 million RGB dots). Due to the SLT system with fixed mirror, which allows use of a classic AF system based on phase detection, the camera is very fast and can even utilize the AF system while recording videos.

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