Thanks for the tips. I was debating for a while and finally decided to take serious photoshoots at conventions this year.
For me, I use flash but I often try to take it both flash and nonflash. I will admit that it works sometimes but flash photography is not something you should rely on, often lighting is better than using flash as it sometimes distorts the background, especially at a big place. I also agree that being nice does make a big difference. You don't want to act rude when you ask someone for your picture and even if they agree to do it, sometimes the emotion would kill the picture in the end.
To fellow photographers, how long does it take for you to adjust to the right angle before taking the picture? One thing I'm afraid of is wasting too much time on getting the right pose for the cosplayer as well as the background before they get upset.
Cosplaying for 2012
unknown at this time