Originally posted by Clavius Sadly, nobody can tell me why it's so hot to have less moving parts.
Because they are costly to produce, assemble, and calibrate, and they also get out of calibration with extended use. And any error in their calibration will also affect focusing accuracy. Not to mention that their operation itself causes issues - like vibrations and limitations around frame rates with continuous AF.
Lack of a mirror or a fixed mirror, as in the case of SLT cameras, are thus a significant step forward, away from the mirror related issues. The impressive thing is not that SLR mirrors will go away, but that it took so much time to replace them.
Originally posted by normhead How do you deal with the fact , that no sensor is as sensitive as the human eye?
The same way you deal with the fact that it's the sensor that records the images and not your eye!
Originally posted by normhead The market for mirror-less systems is the point and shoot crowd , not DSLR users.
Originally posted by normhead Right now... lenses are better for DSLRs... viewfinder optics are better for DSLR's.. and as long as the lenses are better it makes little difference what that sensors the are the same.
Actually, mirrorless systems can produce images of the same quality as DSLRs - as long as you don't have the Pentax Q in mind as the posterchild of mirrorless cameras.
And don't forget about SLTs (if you're going to say that these are not mirrorless, you should read Trey's article again - these are part of the 3rd gen cameras that he's talking about when he predicts the demise of the SLR design). The A77 is a match for the K-5 and the rumored A99 will have a FF sensor.
Therefore, the only point that one can argue about is whether one can live without an OVF or not. But most people can, so that issue becomes moot, because the market is driven by the needs of the majority.