<p>TOKYO (Reuters) - Japan's Canon Corp cut its operating profit outlook for the second quarter in a row, below analysts' estimates, warning that sales of its signature high-end cameras will fall this year for the first time since their launch in 2003.</p><p>The world's largest camera maker said it now sees global economic gloom squeezing sales of its digital interchangeable-lens cameras to 8 million through December from 8.2 million last year. Demand from camera buffs will stay weak in Europe, and fail to recover as quickly in China as Canon had expected.</p><p>While the company's point-and-shoot digital camera sales have been hit in recent years as consumers increasingly use smartphones to take casual shots, the high-margin interchangeable-lens format favored by professional photographers and enthusiasts has seen growth every year up to 2012, company officials said.</p><p>Despite a rebound in operating profit for July-September from a weak quarter a year earlier, Canon lowered its full-year operating profit forecast to 360 billion yen ($3.70 billion). That compares with an average of 378.5 billion yen based on 23 analysts' estimates according to Thomson Reuters Starmine.</p><p><a href="http://www.reuters.com/article/2013/10/24/us-canon-earnings-idUSBRE99N06E20131024">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.ft.com/cms/s/0/089310bc-3c94-11e3-86ef-00144feab7de.html">Canon warns on weak Europe and Asia sales</a> (Financial Times)</p><p><a href="http://www.bloomberg.com/news/2013-10-24/canon-cuts-full-year-net-income-forecast-as-camera-sales-slow.html">Canon Cuts Full-Year Earnings Forecast as Camera Sales Slow</a> (Bloomberg)</p><p><a href="http://economictimes.indiatimes.com/tech/hardware/canon-cuts-profit-outlook-as-camera-slump-drags-on/articleshow/24646794.cms">Canon cuts profit outlook as camera slump drags on</a> (Economic Times)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=d5APowQT2ezVzgMckhZJW50Mqx3NM&ned=us">13 additional articles.</a></p>