As others here have suggested, it would seem to make good business sense for Ricoh/Pentax to make the pre-digital 645 manual and AF lenses available in the US market. Tightening up QC specs and updating the coatings could make them affordable and enticing options for a lot of potential Pentax digital MF buyers. Also, if Samyang/Rokinon were to announce two or three manual focus primes, including an ultra-wide, that at least equalled their popular FF primes in overall performance, they would likely get a lot of buyers. All that said, I've found the legacy P 645 lenses work well with the 645D and in many landscape situations, stitching several frames with the 645 35mm delivers large files for the mural size prints that sell in my market.
---------- Post added 02-08-14 at 12:07 PM ----------
Originally posted by atlnq9 Not sure what you are arguing. I guess you are disagreeing with my comment about the new sensor not being of any benefit to pushing ISO higher and being able to handhold it.
All I was saying is it is hard to handhold it in low light or when you push above f16 for landscape and be confident your image had just as much detail and clean/clear of noise as if you had it on a tripod at ISO 200. And in my opinion the new sensor improves it.
There is no doubt the best camera is the one you have with you. But there is no doubt also that there is nothing like being prepared for any situation. Never had the opportunity to use my 645D when I couldn't use a tripod or support it on something; rock climbing hanging off a cliff, working on foot 20m from elephants, using it from a vehicle. Well there is the times I use it for aerial photography but I have a gyro for those cases.
Edit: I am quantifying big as 40"x60"
There is no doubt the new sensor will offer some S/N benefit over CCD sensors. When I shoot wildlife, which is rare, or some types of landscapes, I typically shoot at F8 or 11. If I need extreme depth of field I sometimes shoot multiple frames at F8 or so, using Helicon Focus to stitch. I would definitely agree with you that it would be difficult to handhold at F16. In the situation in Zion I spoke of, I was on an extremely steep slope. I was able to use rocks to brace myself in lieu of a tripod.