Why I buy a wired remote release for a camera with IR trigger option? Simply because this can do so much more. Of course, I'll always have my little IR trigger in your pocket and not have this, but for those special moments this is so much better! Unfortunately, my first copy was defective, the stimulus came not to the camera, who wandered back to Amazon and I immediately ordered a new, the only even doing it. I have a Nikon D90 on which this trigger reinforced, when shooting at night with exposure times beyond the limit is now 30sec this trigger a help. Unfortunately, Nikon does not provide to the camera running Timer for bulb shooting, this trigger already. But why should I use and then you have all the time to look at the trigger? He has a program where you can next to a waiting period and the exposure, always from 1 sec, set, so just activate mirror lock, wait for exposure to one minute and the result, then just always increase until it reaches, this is, there is the Monitor , I used to always look in the camera, the exposure was actually how long, now remains the old value in the remote release stand and I can change the second. Of course, the remote release also offers other programs, such as a version of the timer up to max 99 shots to max 59sec. For the friends of the time lapse recording, or lunar mansions in the sky, give it to a freely definable program with waiting time with 99h 99min and 99sek, then the adjustment of exposure and theoretical 99h 99min 99sek (this is only possible with a film camera and ruined otherwise each battery and image sensor) and an interval of yes exactly 99:99:99 and a number of image Well it should be for guidance only "99, but there is still a double-digit front counter ... I have not yet tried. As you noted, I am of the remote release enthusiastically and thanks to illuminated display it at night to find no problem all the buttons are easy to press with to feel well. So before the simple Kabelfernauslöser is purchased, it can so much more! Manual only in English and Chinese, but that could always more children nowadays :-) and so the plug is difficult to clean, but also not so eibfach out ...