IR 49s LED IR Illuminator
The IR 49s is an Infrared Illuminator with visually invisible 850nm IR LED's. It can be camera mounted via it's built in shoe, but it also has a 1/4" Tripod thread and 3 extra shoe mounting points so they can be stacked. There is no need for batteries as it has a built in Lithium rechargable battery pack and comes complete with a USB charging cable. The illumination is quite even the example shot here is with a 28mm lens at F2.8 at 1/30th sec at 12800iso.