Composed of 4 frames, 2 of them are 25-min exposure and others are 15-min exposure. Lumicon Deep-sky was used. result of proccessing is not very ideal. I will post the better one later.
Thanks. Sorry reply in English.
1. Each frame is 1hr and 20 mins exposure. Means total is 2hrs and 40mins.
2. I don't use battery for my Pentax67 as I use one accessories called "entax Battery Eliminator ". You can refer to http://www.sciencecenter.net/hutech/pentax/battelim.htm