President Obama’s campaign joined Instagram on Tuesday as @BarackObama, adding the popular iPhone photo-sharing app to its extensive social media repertoire.

(Barack Obama via Instagram)

The first photo shared on the account was of Obama addressing supporters in Iowa via a video conference Tuesday, the day the state’s Republican caucuses were held.

Campaign staff run the account, which has accrued almost 30,000 followers in the two days since it launched. The campaign staff also asks followers to contribute their photos from the campaign trail using the hashtag #Obama2012.

View the PostPolitics team’s #2012Unfiltered photos from the campaign trail

How to use Instagram

Instagram has more than 15 million users and was chosen by Apple as its 2011 “iPhone App of the Year” The app lets users take photos or select them from the native camera application and choose from different filters to give those photos a retro appearance.

The look of the Instagam photos syncs with the 2012 iteration of the Obama campaign Web site, which prominently features filtered photos in its background and updates.

What is @MentionMachine?