SMDV Wired&amp;Wireless Shutter Release RF903 for Nikon MC-30 D810/D800/D700/D4/D3/D2<br /><br />Professional Wired&amp;Wireless Shutter Release RF903 from SMDV<br />This is for use with Nikon MC-30 D810/D800/D700/D4/D3/D2<br />The package consists of transmitter/ receiver channel pin strap and more with user guide<br />Press the trigger button on the receiver halfway to focus on the subject and press it fully to operate shutter function<br />Manufactured in South Korea<br />