Flickr now has a huge space to store & backup photos. It offers you 1TB free space which can accommodate tons and tons of photographs. At some point in time you may want to download some of your Flickr photos. Following we have a quick step by step guide to show you how to download selective Flickr photos.
Select the photo and open the 'More' menu, then click the 'View all Sizes' link inside the menu.
On the next page, choose the size you want to download and click the link in the 'Download' section.
Keep one thing in mind that, if its not your photo, you may not have permission to download the original file so you will not see 'View all Sizes' in the 'More' menu or the 'Download' section on the "All sizes" page of every photo.
On your own photos, you will always see the 'All Sizes' button and the original is available.
There is no batch download option but you can try any one of the handy third-party backup tools and applications to bulk download Flickr photos.