Who needs the mirror?

[piiooo]

1. "No Hassle Live View"


- Are you saying Live View in a DSLR is a hassle?

Yeah, when you focus in live view/quick mode the mirror flips to focus. Disadvantage: noise and interrupted image. When you use contrast based AF, there is no flipping, but it takes sometimes a few seconds to get the image sharp. Plus - the overheating issue, i addressed it below.

2. "Less Moving Parts - Less things to brake"


- Yes, shutters give out after tens, or hundreds of thousands of exposures, but I don't see this has a big shortcoming of DSLR's. My 40D will be obsolete before I take 100,000 shots.

Just google for example: "canon 5d mirror recall"


I hope it won't turn into " canon XX markX vievfinder recall" in the future[]

3. "Less dust on sensor"


- With a shutter covering the sensor most of the time, wouldn't a DSLR have less dust? With the sensor constantly exposed, I wouldn't expect less dust on the sensor.

Like Daniel said, aflipping mirror produces turbulences inside camera whichstirs exogenous and endogenous dust in the camera.Because it usually happensjust beforethe shutter opens, the dustmay wind up on the sensor.

Also, the sensor would most likely have the tendancy to heat up more quickly. We can see this in DSLR's equipped with Live View. Live View will stop after a certain period of time beceause the sensor has to cool down.

Canon have been making camcorders including professional ones for quite a while, I hope they will use their camcorder technologies in their perspective cameras, just like Panasonic did.