Smith-Victor NP-F750 Lithium-Ion Batteries and Dual Charger Bundle Used TTL Speedlights Unlike regular alkaline batteries which

Unlike regular alkaline batteries which can only be used once and are wasteful to the environment

Maximum Jaw Opening: 7 1/2" / 190

Type: 56mm F1

Due to the characteristics of a PF (Phase Fresnel) lens that utilizes the photo diffraction phenomenon

Filter Material : Glass

Smith-Victor NP-F750 Lithium-Ion Batteries and Dual Charger Bundle Used TTL Speedlights Unlike regular alkaline batteries whichThe Smith Victor Batteries and Battery Charger bundles can be used to power lights, monitors and other equipment with NPF Sony Style L Series Lithium Ion batteries. The NP F750 Lithium ion bundle features 7. 4V output power, 4400mAh capacity (32. 0 Wh).