The remote control F allows wireless shutter release control via infrared signal. Infrared remote control compatible with all Pentax cameras that have infrared remote control capability, Compatible with X-5 & X90 bridge cameras, Optio VS20, WG-4/ GPS, WG-20, WG-10, WG-3/ GPS, WG-2/ GPS, WG-1/ GPS, W90 compact cameras, all PENTAX SLR cameras & PENTAX medium format.