Came across this model from DAYI - It is referred to as the model Q and has a bellows instead of a cone.

Link to seller here: http://www.ebay.com/itm/Dayi-Q-4x5-L...-/151221859286

I have not seen this model anywhere else and am wondering if anyone has had a first hand look at it? Or knows of a review? As far as I can determine DAYI does not have a website.