Instagram has introduced the largest update to its iOS app since it was revamped a year ago, it says in a blog post announcing the launch. "The camera has been the core part of the Instagram experience since the day we launched and as a result, we've made significant improvements to its look and speed," writes the San Francisco mobile photo-sharing company.

"We've brought the look of Instagram's camera up to parity with the rest of our application," it says, with an Instagram-themed shutter and shutter release button, a new improved camera roll image selector, and an optional grid guide.

Instagram has also added a new monochrome filter dubbed Willow, with "subtle purple tones and a translucent glowing white border." 

Additionally, the update brings improved tilt and shift controls, a redesigned news feed, and greater integration with Foursquare.

For more details and to download the app, visit www.instagram.com.

Follow BJP on Instagram at www.instagram.com/bjp1854.