Advanced Photo System type-C (APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2. It is therefore also equivalent in size to the Super 35 motion picture film format, which has the dimensions of 24.89 mm × 18.66 mm.
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01. A number of other manufacturers have also produced many K-mount lenses and K-mount cameras.
Hoya Corporation is a Japanese company manufacturing optical products such as photomasks, photomask blanks and glass magnetic-memory disks, contact lenses and eyeglass lenses using wavefront technology for the health-care market, medical photonics, lasers, photographic filters, and software. Hoya Corporation is one of the Forbes Global 2000 Leading Companies and Industry Week 1000 Company.
The Pentax K100D and similar Pentax K110D are 6 megapixel digital single-lens reflex cameras, launched in the U.S. on May 22, 2006. The K100D has a maximum resolution of 3008 x 2008, and can also down-sample to 2400 x 1600 and 1536 x 1024. The slowest metered shutter speed is 30 seconds and the fastest shutter is 1/4000 seconds.
The Pentax MG was a product of Asahi Optical Co later called Pentax Corporation, introduced in 1981 and produced until 1984. It was a replacement of the MV and MV1 cameras as entry level 35mm semi-automatic camera.
The Pentax K-m is a 10.2 megapixel digital single-lens reflex camera, announced on September 22, 2008 at the 2008 photokina trade show along with the DA-L series of lightweight, inexpensive lenses. It was discontinued in November 2009, being replaced by the more recent Pentax K-x.
This article discusses the cameras – mainly 35 mm SLRs – manufactured by Pentax Ricoh Imaging Corp. and its predecessors, Pentax Corporation and Asahi Optical Co., Ltd..
The Pentax K-x is a 12.4 megapixel digital single-lens reflex camera, announced on September 16, 2009. Pentax K-x uses an Exmor, Sony-made sensor. In some cases it even approaches the quality produced by full-frame DSLRs like the Nikon D700 and the Canon 5DMkII, both with larger sensors. The Pentax K-x is suitable for low light conditions for both still and video photography.
The Pentax 6x7 is a SLR medium format system film camera for 120 and 220 film made by Pentax. It originally debuted in 1965 as a prototype dubbed the Pentax 220. Since then and with improvements, it was released in 1969 as the Asahi Pentax 6×7, as well as the Honeywell Pentax 6×7 for the North American import market. It would later receive a number of engineering updates and cosmetic changes and be renamed as the Pentax 67.
The Pentax K-r is a 12.4-megapixel digital single-lens reflex camera, announced on September 9, 2010, and replaced the K-x in Pentax' line-up, with which it shares many features. The K-r is available in three body colors in North America, with other colors available only in the Japanese market. The K-r introduces a new SAFOX IX autofocus system and has a 3-inch display. There is a known issue with front focus and the Pentax K-r. In low kelvin light the camera has severe front focus and this cannot be corrected with the AF fine tune. Pentax did not solve the problem; it is thought the AF module is responsible for the problem.
The Pentax K-5 is a 16.3-megapixel digital single-lens reflex camera, announced on September 20, 2010. It began shipping in mid-October 2010 and it was replaced by the Pentax K-5 II in the third quarter of 2012.
The Pentax Q series is a series of mirrorless interchangeable-lens cameras made by Pentax and introduced in 2011 with the initial model Pentax Q. As of September 2012, it was the world’s smallest, lightest interchangeable lens digital camera. The first models used a 1/2.3" back-illuminated sensor CMOS image sensor. The Q7, introduced in June 2013, uses a larger 1/1.7" type sensor.
Pentax K-01 is a mirrorless interchangeable-lens camera announced in February 2012. It uses the Pentax K mount.
The Pentax 645 is a medium format single-lens reflex system camera manufactured by Pentax. It was introduced in 1984, along with a complementary line of lenses. It captures images nominally 6 cm × 4.5 cm on 120, 220, and 70 mm film, though the actual size of the images is 56 mm × 41.5 mm.
The Pentax X-5 is a digital "bridge" and superzoom camera from Japanese camera maker Pentax, featuring a 16 megapixel sensor and 26 times zoom for a final 35mm focal length equivalent of 580mm, as well as 1080p video capability. It was announced in August 2012 and became available in September 2012. The previous X-designated camera in Pentax' line-up was the Pentax X90.
The Pentax K-3 II is a flagship APS-C DSLR camera announced by Ricoh on April 22, 2015.
The Pentax K-1 is the first production Pentax full-frame digital SLR camera. As the flagship model of the Pentax K-mount system, it includes several new and improved features, including a five-axis SR II in-body image stabilization system, newly designed flexible tilt articulating screen mounted on four metal struts allowing for rotation about the optical axis in addition to upward and downward tilt, and improved autofocus and metering systems.
