rexspangle wrote in post #6139023
pro-sumer and professional are subjective terms imo since the company determines this for their products
For example Canon currently reserves weather sealing as a pro feature..Nikon does not. So you can't really use weather sealing as a gauge of what professional is... So how about image quality... hmmm a 40d is pretty much just as good (dare I say better) than a 5d.... so you can't use iq as the the deal breaker.....but then is a 5d a pro camera? pros use it and for the longest time it was the only FF camera available and still is highly regarded...but wait it isn't weather sealed and the AF is too slow so it can't be pro..... how about shutter life? well that is a something that could warrant being considered professional...
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You have quite a lot of confusing statements there.
For one thing, the 5D was never the only FF camera available as the 1Ds was on the market long before the 5D. Inarguably, the 1Ds is the 'pro' FF camera from Canon.
Few would also agree that the 40D has better IQ than the 5D, and while professionals can and do use both bodies, neither are 'pro' bodies as defined in the line.
As for Nikon, it isn't that Nikon has long offered a different feature set in their 'prosumer' lines. No, instead what has shaken up the market is that Nikon has just recently started to offer many previously 'pro' features like weather sealing and high end AF in their lesser offerings like the D300.