Nokia has introduced a new smartphone - the Lumia 1020, that has a powerful 41-megapixel camera - as it tries to catch up with rivals Samsung Electronics and Apple.
The Finnish mobile phone maker is betting its future in smartphones on Microsoft's Windows Phone operating system as well as on high-tech photography features.
At an event in New York, Nokia chief executive Stephen Elop emphasised the Lumia 1020's advanced optics, which enable sharper images, even when zooming.
"You can literally find a needle in a haystack," Mr Elop said.
The new Lumia, which uses Windows software, will be sold through US carrier AT&T starting on July 26, for $US299.99 ($327.29) with a two-year contract, and will be available later in other markets including China, Nokia said.
Telefonica will be its carrier partner in the European and Latin American markets, it said.
Mr Elop said Nokia, which has suffered a fall in cash reserves after years of poor sales, was pooling resources with AT&T and Microsoft to market the new phone.
Sign up for CIO Asia eNewsletters.