With Interfit's Strobie Off-Camera Octobox (12"/30cm), you can create studio-quality lighting using your on-camera flash. This 12" (30 cm) Ocotobox is for off-camera use only, as the Ocotobox would block the lens if mounted on the camera. The Interfit Flex Mount adapter (available separately) is required to use the Octobox. This softbox is ideal for use with a flash mounted on a stand, bracket or boom arm. The soft light produced is particularly fine for portraits.