Product Descriptionthe Bayonet Adapter With Control Ring Ef-Eos R Provides A Lens Control Ring That Can Be Configured To Adjust Aperture, Exposure Time, Iso Sensitivity Or Exposure Correction So You Dont Have To Take The Eye From The Viewfinder For Setting.Set Contains:Box Contents: Bayonet Adapter With Lens Control Ring Ef-Eos R; Camera Housing Cap R-F-3; Rear Lens Cap Rf; Case; User Manual
