If you're going to order from China you might want to ask the factory what the price is. I just received a 6x12 back this week. Price was about 60% of the US price. Plus mine came with three masks in addition to 6x12. It's actually fairly well made to my eye. Sure it's got the red window but that'll limit frame spacing issues to operator error. It also allows format changes at will. OTOH you'd need to keep track of which frame number you should be using if you're switching formats. Considering the number of frames you get with 6x12 [and I guess this is even worse with 6x17] it would be nice if it took 220 but obviously that's not possible.