Promaster 4180 Speedring for Photogenic Camera Grips Capture your performances in UHD

Capture your performances in UHD 4K video at 30 fps or in 1080p60 HD video with HDR technology to automatically expose your subject instead of blown-out stage lighting

88") thick with included hex-head clamping bolts

Optical Design : 6 Elements in 6 Groups

the first time Tamron has used this material in the mount components of a lens for full-frame mirrorless cameras

16-bit RAW SDI output

Promaster 4180 Speedring for Photogenic Camera Grips Capture your performances in UHDProMaster Softbox Speed Rings are the complete 2 piece set required to mount a ProMaster softbox to your studio flash. The inner ring which attaches to your flash may also be used to mount other speed ring compatible accessories. Fits Photogenic compatible flash heads. ProMaster Softbox Speed Rights are available for the following flashes: