The Zoom LS Remote Control F infrared remote control is handy for taking pictures of subjects that are difficult to approach, for self-potraits, or to minimize vibration for close-ups and time exposure. Features 3-sec. delay shutter release. Compatible with the following: All Pentax cameras that have infrared capability use the same infrared signal. Specific products include: *istD, *istDS *istDS2, *istDL, K100D, K110D, K100D Super, K10D, K20D, Optio A10, A40, S6, S7, S10, T10, T30, S5z, S45, S55, S60, 750Z, 450, 550, 555, S, S4, S4i, S5i, S40, S50, SV