Tiffen 4 x 5.65" Black Satin 1/4 Density Filter QuickPro 5119 They can be used to

They can be used to connect to wireless receivers

53" ( 105 x 85 x 115mm ) Weight (without Camera) 14

military-specification hardware

it provides the freedom of remote IR triggering for multiple flashes

Tiffen 4 x 5.65" Black Satin 1/4 Density Filter QuickPro 5119 They can be used toSubtly Lowers Detail Resolution Smooths Out Blemishes and Wrinkles Reduces Contrast and Controls Highlights ColorCore Technology Glass Construction Designed with filmmakers in mind, this 4 x 5. 65" Black Satin Diffusion Filter from Tiffen features a low density of 1 4 for an understated effect. It is designed to subtly soften the image and lower detail resolution, being often sought after by videographers who want to simulate the look of film footage