Designed for Nikon DSLRs, the 750II TTL Flash from Neewer is a powerful speedlight featuring a guide number of 190' when set to ISO 100 and 105mm. It works with Nikon's i-TTL system for simplified metering with any compatible camera, but can also be used in manual mode for customizing your exposure. More advanced options include S1 and S2 optical slave options for instant firing or skipping a pre-flash, and a stroboscopic mode with configurable flash rate and power. The 750II's zoom head is notably versatile, with a 14 to 105mm coverage range, 90° upwards tilting, and 270° rotation so you can easily adjust your lighting in three different directions. At the front, two panels are available in separate slots: a reflector that can help fill in shadows when bouncing light upwards, and a wide-angle diffuser that helps soften your light when shooting directly at the subject. Complementing these panels is the ability of the flash to work as a wireless slave, making it a great secondary light source in an outdoor shoot. Offering recycle times of up to four seconds, the 750II runs on four separately available AA batteries and includes a convenient storage bag and small stand.