Originally posted by normhead ironlionzion One of the reasons I don't like FF is because there's a 645.... It's really quite simple ... If you need to go big go 645. If you need under 30 inches in print and 2500 pixels on a screen, go APS-c That leaves FF in that tiny little window between where APS-c isn't good enough and to where FF isn't good enough, and that's a very small window.
APS-C is about 16x24mm
FF is about 24x36mm
645D is about 33x44mm
When you consider the area of the sensor, FF is significantly larger than APS-C. 645D is an even greater step up from FF.
I understand your argument that many people don't need the benefits of FF. But then again, one could say some people should have stuck to a point and shoot instead of upgrading to a DSLR. One could say that people don't need the benefits of the K5 and should have just stuck to the K-r or K-x. Great photos have been taken on lesser "quality" cameras.
Surely, having the only upgrade option from the $1k K5 be the $10k 645D is a huge jump...something in between would be appreciated by many.
The thing is, technology and image quality is improving for a reason: people want it whether or not they need it. Now, whether Pentax should or should not produce a FF, only they know the market well enough and they themselves are the only ones qualified to say whether starting a FF line will be profitable.