Originally posted by jsherman999 We need access to a multiverse portal or time machine to verify, but the point is, all else equal, a given photographer will get better results with better tools.
First of all, we need a definition of what is a "better tool" in this specific subject matter. I guess we all assume that "better" means "full frame compared to APS-c", so lets stick to this concept and do a little brainstorming. It means that we should make our decision in "needing" or "wanting" a ff frame camera instead of an aps-c camera, because we assume ff is better than aps-c, or isn't?.
"All things being equal" for me, it means SAME SPECS. Only difference would be sensor size (and of course, pixel count). Like for example, a K3 with all its bells and whistles but with full frame sensor.
To be "fair" and keep true "equal conditions", lets say that lens availability is identical for both formats. Imagine you are a first time buyer and have nothing to tie you to a certain format (like having only aps-c glass or ff glass before hand).
OK... drum roll please: What would be the decision making fact here?
There has to be "something different" that help us make an objective decision. It could be that there is a price difference either in body or in available accessories.... but ahhh, we said "all things being equal" so its not fair to say one system is more expensive than the other.
C'mon guys... give me a good reason to choose between one system or the other!
For me, such reason relies on "market expectancy and technology trend"
What?
Exacty that; I would make my decision considering what is going on in the market, technology advances and specification trends. I would include under this conditions, as much "related" technical issues involved in image display, storage, usability in a commercial way (now and in the future) and of course, product brand and system back up by the manufacturer.
So, what is my (your choice), aps-c or ff? The better one for my needs, but I guess my needs can be different than yours, so I wouldn't dare to suggest, imply or induce anyone in making decisions based on what I do, neither make my decisions based on what someone else does. In fact, lets answer this question avoiding the "me too" trend.
But... coming down to Earth again, such conditions we know do not exist in a real world. We do know there would be differences in price and in technical specs. For example, talking about technical specs difference that DO EXIST today: What do you want: Full frame or in body Shake Reduction? We do know having both is now not possible, so what do you need most?