In my quest to fulfill a desire to shoot landscapes with as much IQ as possible, I've visited using T/S adapters on my H4D, using my DB for a view camera etc. Although, these are viable, albeit expensive options, nothing seems to compare to a 4x5 film negative in IQ for printing big. Yes, scans are expensive too and that is why i'm looking for a reputable company to develop and scan and transfer to CD, my film images. I've been told that most companies only scan to 40mb or so in jpg, that can be converted to a tiff to archive later, with no loss of resolution...so they say. In comparing a 6x7 neg to a 4x5 for scanning, to print up to 16x20, is there a real difference in image quality, tonality, etc.? Bigger prints then that, I know the answer, but just trying to still shoot film and keep costs reasonable. I know I give up movements with the 6x7 and have to make the choice between the two formats.