Thanks for these two sets of comments. Your comments are just about what I have been thinking myself. Maybe better to bite the bullet hard and go for the Z instead of saving a few dollars and still wishing for something else! Robert, good luck in capturing the BlueAngels. I had some fairly good results year before last at Cleveland Airshow just using K-7. The cropping capability of my K-3 is much better than the K-7, and I can only imagine cropping from 645Z images!
---------- Post added 10-08-14 at 05:44 PM ----------
Originally posted by Royce Howland I have both the 645D and 645Z, currently... 2 of the former and 1 of the latter. (At least 1 of the D's will be sold once an on-going shutter repair saga is concluded.) The Z is a far more shootable camera in a far wider range of situations due to its performance, high ISO range, Live View for static situations, etc. But if I was on an extremely tight budget to start into a 645 digital system, I'm not sure which way I'd go. The D still produces phenomenal files within the range it can operate effectively, so it's still a strong contender.
The major decision factor is whether you can live within the limitations of the D in exchange for the lower cost. I did for 3.5 years... but having the Z opens up the use of the camera in a tremendous way, so I personally wouldn't go back just to the D now. In fact, my current debate is whether to sell on both of my D's and get a 2nd Z instead of keeping a single D as my backup.
Thanks again for your comments. Can you share with me the nature of your photography--advertising, landscape, or what? Thank you.