YONGNUO MC-36R/C1 Wireless Timer Remote for CANON Rebel T3 T3i T2i T1i XSi G12 60D 1100D 600D 550D 500D 450D Reviewhttp://tinyurl.com/jvhh846 YONGNUO MC-36R/C1 Wireless Timer Remote for CANON Rebel T3 T3i T2i T1i XSi G12 60D 1100D 600D 550D 500D 450D YONGNUO MC-36R/C1 Wireless Timer Remote Shutter Release, Compatible list: CANON EOS 60D/Rebel T3i/T3/T2i/T1i/Xsi/Xs/Xti/Xt/1100D/1000D/600D/550D/500D/450D/400D/350D/300D Pentax k-5/K-7/K10D/K110D/K100D/K20D/K200D/Cs205 Pentax *ist D/DS/DS2/DL/DL2/K10,MZ-6, MZ-L, ZX-L, Hasselblad H/H1/H2/H2D/H1D, Contax 645/Nl/Nx/N/Digital/LA-50, Samsung GX-20 GX-10 GX-1L GX-1S NX-10Delay/Self Timer (DELAY) : Just like the self timer on your camera. The timer remote switch allows you to set any delay (in 1 second increments) up to 99 hours, 99 minutes and 99 seconds .IntervalTimer(INTVL) : The Interval Timer can be set to any time period up to 100 hours as well. If you set it to 10 minutes, for example, one exposure will be taken every 10 minutes until either the film runs out or the Exposure Count limit has been reached .BULB/Long Exposure (LONG) : It allows you to take time exposures up to 100 hours long .Exposure Count (N) : This setting allows you to set the times of exposures that will be taken, up to countable 399 times or unlimited times. For example, if you set it to 30 times, then the exposure will be only taken 30 times . if you set it to "--", it means the timer will work until the camera or timer run out the power.