Going out deep into the high desert over the 4th. Going to try and get some good star and Milky Way photos. Star trails etc... I have the Yongnuo transmitters and receivers and they have never failed me. Question is, they also make a timer for D700, and I'm wondering if anyone has used it? or if its any good? It going to be a necessity for the trip. Any other recommendation for timers? I don't want it to break the bank. Also, anyone use the Photopills app?