having using several LF cameras i bought a shen hao TZ45-IIB as it seemed very portable, versatile and reasonably build, although it seems that it┤s ground glass is a tad dark. I haven┤t received the camera yet...

1║ - is it so dark as people say?
2║ - should i buy a expensive replacement? (maxwell boss or ebony?)
3║ - Should i buy a cheaper alternative, if so which one (hopf or yanke??)
4║ - To frenel or not to fresnel (related to the previous question)?
5║ - should i try to make my own with abrasives?

Thanks

Rui Lourosa