merge from Specificity factor date January 2012 A sigmafactorfactor is a protein needed only for initiation ... genetics transcription initiation factor that enables specific binding of RNA polymerase to gene promoter biology promoter s. The specific sigmafactor used to initiate transcription of a given gene will vary .... Every molecule of RNA polymerase holoenzyme contains exactly one sigmafactor subunit, which ... sup 70 sup refers to the sigmafactor with a molecular weight of 70 Dalton unit kDa . RNA polymerase holoenzyme complex consists of core RNA polymerase and a sigmafactor executes transcription of a DNA template strand. Once initiation of RNA transcription is complete, the sigmafactor can leave the complex ... only in primary sigma factors RpoD, RpoS in E.coli . It is involved in ensuring the sigmafactor ... factors in Escherichia coli E. coli sup 70 sup RpoD sup A sup the housekeeping sigmafactor or also called as primary sigmafactor , transcribes most genes in growing cells. Every cell has a housekeeping sigmafactor that keeps essential genes and pathways operating. ref name gross In the case of E. coli and other gram negative rod shaped bacteria, the housekeeping sigmafactor is sup 70 sup ... before the start of transcription. sup 19 sup FecI the ferric citrate sigmafactor, regulates the fec gene for iron transport sup 24 sup RpoE the extracytoplasmic extreme heat stress sigmafactor sup 28 sup RpoF the flagellar sigmafactor sup 32 sup RpoH the heat shock sigmafactor, it is turned ... factor sup 54 sup RpoN the nitrogen limitation sigmafactor There are also anti sigma factors that inhibit the function of sigma factors and anti anti sigma factors that restore sigmafactor function ... beta , 1 beta prime , and 1 omega subunits binds a sigmafactor to form a complex called the RNA ... links MeshName SigmaFactor Transcription factors g0 Category Gene expression cs Sigma faktor de Sigma Faktoren es Factorsigma it Fattore sigma nl Sigmafactor ja pt Fator sigma sk Faktor sigma ... more details
unreferenced date October 2010 Sigma t is a unit used in oceanography to measure the density of seawater at a given temperature. sub T sub is defined as S,T 1000 kg m sup 3 sup , where S,T is the density of a sample of seawater at temperature T and salinity S, measured in Kilogram per cubic metre kg m sup 3 sup , at standard atmospheric pressure. See also Water molecule Density of saltwater and ice Density of saltwater and ice Category Units of density ... more details
wiktionarypar factor A factor , a Latin word meaning who which acts , may refer to In commerce Factor agent , a person who acts for another, notably a mercantile and or colonial agent Factor Scotland , a person or firm managing a Scottish estate Factors of production , a resource used in the production of goods and services Factoring finance , an entity providing commercial finance services Max Factor , a cosmetics company founded by Max Factor, Sr. In science An enzyme , proteins that catalyze chemical ... to affect an experiment see design of experiments Sun protection factor , a unit describing reduction in transmitted ultraviolet light Factor B and factor D , peptides involved in the alternate pathway ... non trivial divisors A coefficient , a multiplicative factor in an expression, usually a number A von Neumann algebra with a trivial center Factor graph theory , a spanning subgraph Any finite contiguous subsequence of a Word mathematics word In statistics Factor analysis is the study of how factors ... technology Authentication factor , a piece of information used to verify a person s identity for security purposes Factor programming language , a concatenative stack oriented programming language A substring , a subsequence of consecutive symbols in a string In television The O Reilly Factor , an American talk show hosted by Bill O Reilly on Fox News The Krypton Factor , a British game show hosted by Gordon Burns, formerly on ITV The Krypton Factor US game show The Krypton Factor US game show American version People Max Factor, Sr. , a Polish American businessman and cosmetician Max Factor, Jr. , son of the above, born Francis Factor John Factor , a Prohibition era gangster Organizations FACTOR , the Foundation to Assist Canadian Talent on Records disambig ar ca Factor cs Faktor da Faktor de Faktor es Factor eu Faktore argipena fr Facteur io Faktoro it Fattori nl Factor ja no Faktor pl Faktor ro Factor ru simple Factor sk Faktor fi Faktori sv Faktor uk ... more details
peacock date April 2012 Infobox Fraternity letters name SigmaSigmaSigma crest Image Sigmasigmasigma crest.jpg founded start date and years ago 1898 04 20 birthplace Longwood University Longwood ... Pearl publication The Triangle of SigmaSigmaSigma philanthropy The Robbie Page Memorial Providing play therapy for hospitalized children. chapters members 100,000 lifetime free label Triple Sigma free Lady Sigma address 225 North Muhlenberg Street city Woodstock state Virginia country USA homepage http www.sigmasigmasigma.org SigmaSigmaSigma , also known as Tri Sigma , is a national American women s sorority with membership of more than 100,000 members. SigmaSigmaSigma is a member of the National ... the founding of the Greek letter society known as SigmaSigmaSigma. At the same time, Lucy Wright ..., followed by the founding of Alpha Sigma Alpha in 1901. These four sororities were all founded ... first decade, Tri Sigma recognized the need for both legal recognition as a social body and a written ... their Charter of Incorporation on February 12, 1903. Tri Sigma s first constitution was adopted ... the groundwork of the sorority s foundation. In 1915, Tri Sigma absorbed the two remaining chapters of Sigma Delta Chi sorority Sigma Delta Chi sorority. Additional collegiate chapters were established and all members met at a convention. As the sorority grew, the national nature of Tri Sigma ... the day that SigmaSigmaSigma was founded, Founders Day. Each initiated member receives the latest edition of Tri Sigma s story, The Years Remembered of SigmaSigmaSigma , and The Path from ... of SigmaSigmaSigma, The Triangle of SigmaSigmaSigma , which is published three times a year. Deleted ... MissionVisionValues ref SigmaSigmaSigma exists to provide a lifelong sorority experience for women ... about mission title SigmaSigmaSigma Sorority accessdate 2008 03 21 publisher SigmaSigmaSigma Sorority ... mission Bot retrieved archive archivedate 2008 02 16 ref SigmaSigmaSigma reaffirms its long standing ... more details
Multiple issues wikify March 2012 orphan February 2009 notability May 2008 Factor T is a book first published in 1956 written by the Polish writer, philosopher, filmmaker, composer and poet Stefan Themerson . ref cite journal last Wisdom first J. O. authorlink John Wisdom year 1958 month May title Review journal The British Journal for the Philosophy of Science volume 9 issue 33 pages 84 85 url http www.jstor.org sici?sici 0007 0882 195805 9 3A33 3C84 3AFT 3E2.0.CO 3B2 F accessdate 2008 05 14 doi 10.1093 bjps IX.33.84 ref Factor T is based upon Themerson s theory that the eternal tragedy factor T of humanity is found in the conflict between the urge to satisfy certain desires and the aversion against the actions required for such a satisfaction. References reflist Category 1956 books Category Polish non fiction books philo book stub nl Factor T ... more details
FACTOR the Foundation to Assist Canadian Talent on Records is a private non profit organization, ... dedicated to providing assistance toward the growth and development of the Canadian independent recording industry from http www.factor.ca whatisfactor.html their website . Founded in 1982 , FACTOR has been administering public money since 1986 . From an inaugural budget of 200,000 Canadian dollar CAD , they now distribute over 11.5 million dollars annually. The merit based approach of monetary distribution used by FACTOR and Canadian music video funding organization VideoFACT , is not without critics. In 2009, the organizations came under public scrutiny when a letter written by Unfamiliar Records founder Greg Ipp was republished on the internet ref http www.thedailyswarm.com swarm open letter canadas music industry grant system why does metric mstrkrft and well funded mediocrity get all support ref in turn promoting the idea that bigger image based bands shouldn t be getting such a huge amount of those finite funds as it leaves relatively little, if any, funding for the smaller up and coming bands. ref http www.exclaim.ca articles generalarticlesynopsfullart.aspx?csid1 134&csid2 844&fid1 39899 ref Notable recording artists who have received FACTOR grants include Alexisonfire Jann Arden Bedouin Soundclash Blue Rodeo Dave Borins Boy Canadian band BOY Jason Collett The Dears K naan Mark Sultan Metric band Metric Michael Kulas Moneen Propaghandi Protest The Hero Sam Roberts The Trews Wolf Parade Woodpigeon band Woodpigeon Xavier Rudd References reflist External links http www.factor.ca The FACTOR website Canada stub Category Canadian music industry ... more details
Infobox television show name The It Factor image caption show name 2 genre Reality television format creator developer writer director creative director presenter starring judges voices narrated theme music composer opentheme endtheme composer country United States language English language English num seasons 2 num episodes list episodes executive producer producer editor location cinematography camera runtime 30 minutes company distributor channel Bravo US TV channel Bravo picture format audio format first run first aired Start date 2002 1 6 last aired End date 2003 3 31 status Ended preceded by followed by related website production website The It Factor is a reality television show that aired on the Bravo US TV network Bravo network. It followed actors trying to lead successful careers. The show lasted for two seasons. The first season profiled actors in New York City and the second season profiled actors in Los Angeles . Notable actors who appeared on the show include Oscar nominee Jeremy Renner , model actress LisaRaye , Michaela Conlin who went on to become a regular on the TV series Bones TV series Bones , and Godfrey comedian Godfrey who became a spokesman for 7 Up . External links imdb title 0307762 The It Factor imdb title 0348510 The It Factor Los Angeles DEFAULTSORT It Factor Category 2000s American television series Category 2002 American television series debuts Category 2003 American television series endings Category American reality television series Category Bravo U.S. television series US reality tv stub ... more details
theory Sigma algebra algebra, field in set theory A busy beaver function in computability theory math Sigma 0 n math or math Sigma 1 n math , sets in the analytical hierarchy math Sigma P i math , a set in the polynomial hierarchy Harish Chandra s function Weierstrass sigma function Science Stefan Boltzmann constant of radiation in physics Sigmafactor of RNA polymerase in biology ...wiktionarypar sigmaSigma is a letter of the Greek alphabet. Sigma may also refer to Companies Sigma TV , a television channel in Cyprus Sigma Company , an Australian pharmaceutical company Sigma Corporation , a Japanese camera and lens manufacturer Sigma Company Limited , a Hungarian debt management company Sigma Aldrich , an American chemical company Sigma Designs , Inc., a US semiconductor manufacturer SIGMA verification service , Nielsen Media Research s tracking system for videos Sigma Sport , a German manufacturer of electronic sports equipment Sigma AB , Swedish IT consultancy company Telkomsigma or Sigma Cipta Caraka, an Indonesian ICT business solution provider Mathematics Summation ... Sigma baryon , a class of baryons in particle physics Pauli matrices in quantum physics Cross section physics Cross section in physics Sigma bond in chemistry Sigma receptor , a subtype of opioid ... mechanics , the force per unit area applied by internal forces of a material Products Sigma sailplane Mitsubishi Sigma disambiguation GM Sigma platform , a mid size car automobile platform from General Motors Corporation Smith & Wesson Sigma , a firearm Sigma Guitars The SDS Sigma series of computers from Scientific Data Systems Video games Sigma Mega Man X Sigma Mega Man X , the main villain in the Mega Man X video game series Ninja Gaiden Sigma , a PlayStation 3 title in the Ninja Gaiden video game series Sigma, a character in the BioShock 2 downloadable content pack Minerva s Den Sigma Harmonics , a video game Other Sigma couch , an ancient Roman couch used for banquets Sigma, Capiz ... more details
The Sigma Protocol is the name of a novel. Sigma Protocol may also refer to Proof of knowledge Sigma protocols Sigma protocols , a type of cryptographic protocol. disambig ... more details
is approximately equal to the sigma of a star travelling at 50 km s. The increase factor ...Orphan date April 2010 Unreferenced date May 2010 Sigma in cosmology was a property of Galaxy galaxies used when trying to work out the mystery of galaxies and their supermassive black hole s. History In the late 1990s the Nuker team NUKER experts had made observations with a spectroscope of two galaxies, one of an Active galactic nucleus active galaxy with an active galactic nucleus called NGC10 68 and a dormant galaxy next door to us named Andromeda Galaxy Andromeda . File Spetroscope Observations.jpg thumb NUKER s observations of M 31 Andromeda galaxy with a spectroscope. Light was distorted proving the existence of a supermassive black hole. The observations are shown. The light from the centre in Andromeda galaxy was distorted proving the existence of super massive black holes. Other observations proved most galaxies had a similar centre whether it be active or dormant. They then realised that the black hole s must have something to do with a galaxy s formation, so they turned to something they thought was useless the speed of the star s around the edge of the galaxy. This was Sigma, the speed of the stars at the edge of the galaxy supposedly unaffected by the mass of the black hole at the centre. Usage In Cosmology The Nuker Team NUKER team calculated the sigma of several stars in different galaxies and the mass of the black hole at the nucleus centre. They expected no correlation ... stars. Sigma comes into use when the black hole gets heavier from the increased mass . The stars ... of galactic creation. see Galaxies Formulation and Notation Sigma is given by the Greek letter sigma in lower case with star velocity in subscript sub sub . In physics and mathematics lower case sigma means set or group. This is appropriate for the property sigma as it is a measurement of a group ... From time 7 53 DEFAULTSORT Sigma Cosmology Category Cosmology ... more details
Sigma mostly finds application in large organizations. ref name QD An important factor in the spread ... title The Six SigmaFactor for Home Depot last Richardson first Karen publisher ...Distinguish Sigma 6 Image Six sigma 2.svg thumb 206px The often used Six Sigma symbol Manufacturing Six Sigma is a Strategic management business management strategy , originally developed by Motorola , USA in 1986. ref name ssorigin ref name Tennant6 cite book last Tennant first Geoff title SIX SIGMA ... books.google.com ?id O6276jidG3IC&printsec frontcover PPA6,M1 isbn 0 566 08374 4 ref Six Sigma became ... in 1995 ref name sshxpqa cite web title The Evolution of Six Sigma url http www.pqa.net ProdServices .... Six Sigma seeks to improve the quality of process outputs by identifying and removing the causes ... Belts , Green Belts , etc. who are experts in these methods. ref name proscons Each Six Sigma project ... targets cost reduction and or profit increase . ref name proscons The term Six Sigma originated from ... by a sigma rating indicating its yield, or the percentage of defect free products it creates. A six sigma process is one in which 99.99966 of the products manufactured are statistically expected to be free of defects 3.4 defects per million . Motorola set a goal of six sigma for all of its manufacturing ... used to achieve it. Historical overview Six Sigma originated as a set of practices designed to improve ... University What is Six Sigma? url http www.motorola.com content 0,,3088,00.html accessdate 2009 09 14 quote ... Six Sigma started as a defect reduction effort in manufacturing and was then applied ... Sigma, a defect is defined as any process output that does not meet customer specifications, or that could ... cite web first Jiju last Antony title Pros and cons of Six Sigma an academic perspective url http www.onesixsigma.com ... http www.onesixsigma.com node 7630 archivedate July 23, 2008 ref The core of Six Sigma was born .... ref cite book author Schroeder, Richard A. MIKEL PHD HARRY title Six Sigma The Breakthrough Management ... more details
Sigma Virus may refer to Sigma viruses , a clade of viruses in the family Rhabdoviridae that infect dipterans. The Sigma Virus from the mega man video game series. disambiguation ... more details
In mathematics, by sigma function one can mean one of the following The Divisor function sum of divisors function sub a sub n , an arithmetic function Weierstrass sigma function , related to elliptic functions Kronecker s sigma function Rado s sigma function, see busy beaver See also sigmoid function . mathdab de Teilersumme fr Fonction sigma ... more details
In mathematics , approximation adjusts a Fourier series Fourier summation to eliminate the Gibbs phenomenon which would otherwise occur at discontinuities . A approximated summation for a series of period T can be written as follows math s theta frac 1 2 a 0 sum k 1 m 1 mathrm sinc Bigl frac k m Bigr cdot left a k cos Bigl frac 2 pi k T theta Bigr b k sin Bigl frac 2 pi k T theta Bigr right , math in terms of the normalized sinc function math mathrm sinc , x frac sin pi x pi x . math Here, the term math mathrm sinc Bigl frac k m Bigr math is the Lanczos factor , which is responsible for eliminating most of the Gibbs phenomenon. It does not do so entirely, however, but one can square or even cube the expression to serially attenuate Gibbs Phenomenon in the most extreme cases. See also Lanczos resampling References Unreferenced date January 2007 Category Fourier series Category Numerical analysis mathanalysis stub bs Sigma aproksimacija fr Approximation sigma ... more details
Sigma 7 may refer to the callsign of the spacecraft used in the Mercury Atlas 8 mission the SDS Sigma 7 computer, made by Scientific Data Systems SDS , later known as Xerox Data Systems XDS Sigma Seven , a Japanese company Sigma 7 video game , 1987 computer game by Durell Software disambig ... more details
Mitsubishi Sigma may refer to one of several vehicles manufactured by Mitsubishi Motors between 1976 and 1996 The Mitsubishi Galant Sigma , a version of the Mitsubishi Galant sedan built between 1976 and 1987 Versions of the Chrysler Sigma built and sold in Australia from 1980 to 1987 The hardtop version of the fifth generation Mitsubishi Galant Sapporo Sigma Mitsubishi Galant , sold in the United States from 1984 to 1990 Some export versions of the Mitsubishi Diamante sedan and station wagon, manufactured in Australia from 1990 to 1996 Mitsubishi Motors vehicles SIA Category Mitsubishi Motors vehicles Sigma da Mitsubishi Sigma de Mitsubishi Sigma ja pl Mitsubishi Sigma sv Mitsubishi Sigma ... more details
Delta Sigma may refer to Delta Sigma Fraternity , a secondary school fraternity founded in 1897 at Lewis Institute in Chicago, Illinois Delta Sigma Sorority , a collegiate sorority founded in 1895 at Tufts University and later absorbed by Alpha Omicron Pi Delta sigma modulation , a pulse density modulation scheme used in analog to digital and digital to analog conversions disambig ... more details
For sigma delta in electronics Delta sigma modulation Image Dartmouth College campus 2007 06 23 Sigma Delta 03.JPG thumb right Sigma Delta Sigma Delta is a local sorority at Dartmouth College in Hanover, New Hampshire Hanover , New Hampshire , United States . First established on the campus in 1972, Sigma Delta, known as Sigma Delt by students, as a chapter of the national sorority Sigma Kappa . Dartmouth s Sigma Kappa chapter was the first sorority to be founded on Dartmouth s campus. Women were not permitted to enroll at Dartmouth until 1972 and women only slots were an imperative experience for the newly matriculated women. Sigma Kappa fulfilled the gap well with this new establishment where women could meet anytime in the course of the week. By the late 1980s Dartmouth s student population had diversified. With this diversification of the student body, the sisterhood of Dartmouth s chapter of Sigma Kappa experienced an influx of women of minorities who wished to have not only a female space, but also a space that would embrace their personal identities as women regardless of age, class, religion, or ethnicity. In 1989, Dartmouth s Sigma Kappa chapter split from the national organization citing that the national rituals were too heavily steeped in Christianity. With this move, Sigma Delta was established as Dartmouth s first local sorority. External links http www.dartmouth.edu Dartmouth College http www.sigmadelt.org Sigma Delt Dartmouth College Category Dartmouth College Greek organizations Category Sigma Kappa ... more details
Sigma AB is a Sweden Swedish consultancy and information technology IT company. The Sigma Group is divided into two business areas IT & Management, and Information Logistics. ref name Facts http www.sigma.se en About Sigma About Sigma Facts Sigma About Sigma Facts , accessed on January 16, 2010 ref Sigma AB was founded by Swedish entrepreneur Dan Olofsson in 1986 as a technical consultancy company, and was introduced on the Stockholm Stock Exchange in 1997. ref http www.sigma.se en About Sigma About Sigma History Sigma About Sigma History , accessed on January 16, 2010 ref The company is currently listed on the Small Cap list of the Stockholm Stock Exchange. The Sigma Group has 1,200 employees ref name Facts and its turnover in 2009 was 130 million euro . ref http www.sigma.se Sigma AB ref The company won the prize of Dataf reningens Diamant for being the IT company with Best Understanding of Customer s Needs. ref http www.dfs.se node 4937 ref They support the South Africa based Star for Life project, aimed at preventing the spread of hiv aids. ref http www.starforlife.org support us sponsors partners ref References Reflist External links http www.sigma.se Sigma AB Official website Sweden company stub Category Companies of Sweden sv Sigma AB ... more details
Image Ph locator capiz sigma.png right thumb Map of Capiz showing the location of SigmaSigma is a 4th class Philippine municipality municipality in the Philippine province province of Capiz province Capiz , Philippines . According to the 2000 census, it has a population of 27,366 people in 5,541 households. Barangays Sigma is politically subdivided into 21 barangay s. table border 0 tr td valign top Acbo Amaga Balucuan Bangonbangon Capuyhan Cogon Dayhagon Guintas Malapad Cogon Mangoso Mansacul td td valign top Matangcong Matinabus Mianay Oyong Pagbunitan Parian Pinamalatican Poblacion Norte Poblacion Sur Tawog td tr table External links http www.nscb.gov.ph activestats psgc default.asp Philippine Standard Geographic Code http www.census.gov.ph census2000 index.html 2000 Philippine Census Information Capiz coord 11 25 N 122 40 E region PH type city display title Category Municipalities of Capiz bcl Sigma, Capiz ceb Sigma, Capiz de Sigma Capiz gl Sigma, Capiz id Sigma, Capiz it Sigma Capiz pam Sigma, Capiz nl Sigma Capiz tl Sigma, Capiz vi Sigma, Capiz war Sigma, Capiz ... more details
Infobox Societies university name Sigma Pi Sigma image established December 11, 1921 incorporated type Honor Society president city state country members 75,000 employees volunteers website http www.sigmapisigma.org Sigma Pi Sigma is the National Physics Honor Society. It strives to promote physics at all stages, to promote fraternity between those who excel at physics, and to promote service among its members. It is closely associated with the Society of Physics Students SPS . External links http www.sigmapisigma.org Sigma Pi Sigma National Website Association of College Honor Societies Primarysources date January 2007 honor stub Category Association of College Honor Societies Category Honor societies ... more details
Cleanup date May 2008 Primary sources date May 2008 Infobox Fraternity letters name Phi SigmaSigma ... the personal development of each sister and perpetuate the advancement of womanhood. vision Phi SigmaSigma is a dynamic sisterhood of powerful women fostering uncompromising principles, igniting positive change and embracing individuality. motto Diokete Hupsala br Aim High maxim Once a Phi SigmaSigma, always a Phi SigmaSigma. colors color box 002366 Royal Blue King Blue color box gold Gold color ... Phi SigmaSigma Foundation chapters 150 115 active members 60,000 lifetime free label free address 8178 ... Phi SigmaSigma , colloquially known as Phi Sig, was the first collegiate nonsectarian sorority ... of all faiths and backgrounds. Founded by 10 women on November 26, 1913, Phi SigmaSigma is now an international ... Phi SigmaSigma are Lillian Gordon Alpern, Josephine Ellison Breakstone, Fay Chertkoff, Estelle ... PHISIGMASIGMA PHISIGMASIGMA About History Default.aspx publisher Phi SigmaSigma accessdate 2010 ... About History Default.aspx publisher Phi SigmaSigma accessdate 2009 06 29 ref Phi SigmaSigma strives ... at Western Illinois University In 1918, Phi SigmaSigma expanded by founding its Beta chapter at Tufts .... The official publication of Phi SigmaSigma is The Sphinx , which first appeared in 1923. The sorority ... husband, Arthur Lippman. Phi SigmaSigma has also established chapters in Canada Upsilon chapter 1930 ... The sorority s official philanthropy is the Phi SigmaSigma Foundation, which supports the National Kidney Foundation NKF . The Phi SigmaSigma Foundation also provides scholarships and educational grants, as well as leadership programming to collegiate and alumnae members. The NKF has been Phi SigmaSigma s primary philanthropic endeavor since 1971 because kidney disease was a leading health concern for women at that time. Since then, Phi SigmaSigma has actively helped educate women, men and children .... In the recent past, the Phi SigmaSigma Foundation was a major sponsor of the National Kidney ... more details
Sigma constant constant may refer to Yamabe invariant , in mathematics a parameter of the Hammett equation in organic chemistry disambiguation ... more details
dablink Not to be confused with the unrelated Sigma Sport Specialized cycling team. third party date March 2011 Sigma Sport is a manufacturer of electronic sports equipment such as the Rox and Topline product lines of heart rate monitor s, altimeter s, and bicycle computer bike computer s. See also Polar Electro Garmin Forerunner http www.sigmasport.co.uk Sigma Sport Bike Shop http www.sigmasport.com Category Sporting goods manufacturers of Germany Category Watch brands sport stub Germany company stub de SIGMA Elektro fr Sigma Sport ko pl Sigma Sport ... more details
Infobox camera model Sigma SD1 image file Sigma SD1 01.jpg 250px Sigma SD1 with 17 50mm, f 2.8 kind Digital single lens reflex camera Digital single lens reflex sensor 23.5 15.7mm APS C 1.5x crop Foveon X3 res 4800 x 3200 x 3 layers 46 megapixels lens Interchangeable Sigma SA mount viewfinder Optical, pentaprism farea 11 point twin cross AF fmode Single AF, Continuous AF with AF motion prediction function and Manual storage CompactFlash CF Type I Not microdrive or CF Type II processor True II Image processing engine speedRange 100 6400 rearLCD 3 in 63 mm , 460,000 pixels msrp 9799 USD madeIn Japan The Sigma SD1 is a digital photography digital Single lens reflex camera SLR camera produced by the Sigma Corporation of Japan . The camera uses a Foveon X3 sensor, which comprises 3 layers of 4800 x 3200 pixels 46 megapixels , giving much higher spatial resolution than the equivalent Bayer filter Bayer array . The SD1 was announced by Sigma at Photokina 2010 on September 21, 2010. Pricing The SD1 was officially put on sale in May 2011 at a Recommended retail price RRP of nearly US 10,000, ref cite web url http www.photographyblog.com news sigma sd1 price availability announced title Sigma SD1 Price & Availability Announced accessdate 2011 05 24 ref . On Q1 2012 the SD1 price dropped nearly to 3000 References Reflist 1 External links Commons category multi Sigma SD1 Taken with Sigma SD1 http www.sigmaphoto.com shop sd1 dslr sigma Product Page Sigma Cameras Sigma DSLRs Category Digital SLR cameras Category Sigma cameras SD1 ru Sigma SD1 ... more details
Encyclopedia
top
