I just too my first round of pictures with my Holga. I ran two rolls of 400 speed 35mm film. It was a very bright day. The ones taken in more light didn't come out as good. So I was told by a lady at the shop to use 100 speed film. Is this correct or should I just stick to 400 speed? I plan on shooting 120mm and that is expensive film and processing so I want to get it right. Also, I taped up the back window so light wouldn't hit the back of my 35mm film but now I can't see the counter for the 120mm film. Does anyone know how many clicks between frames? Thanks!