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Old Sep 13, 2004, 1:23 PM   #11
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Ah yes, a pellicle mirror and two places to have to worry about dust- the mirror since it doesn't moveAND the sensor. You think we have problems now with just trying to keepdust off the sensor, I could justimagine all the ruined mirrorsfrom people screwing those up trying to clean them.....don't think it'll happen.

Those that like viewingviaLCD's have a choice. Stay with a digicam.
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Old Sep 13, 2004, 2:15 PM   #12
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Greg Chappell wrote:
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Ah yes, a pellicle mirror and two places to have to worry about dust- the mirror since it doesn't move AND the sensor.
Actually this idea might work out better, since no cleaning would be required:
1. With a fixed pellicle mirror, the film's chamber can be sealed protecting the sensor against any dust!
2. Dust on the pellicle mirror will be "out-of-focus", similar to particles in the lens !!! :-):-):-)
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Old Sep 14, 2004, 3:00 AM   #13
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Greg Chappell wrote:
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Ah yes, a pellicle mirror and two places to have to worry about dust- the mirror since it doesn't moveAND the sensor. You think we have problems now with just trying to keepdust off the sensor, I could justimagine all the ruined mirrorsfrom people screwing those up trying to clean them

Of course with the E-10 & 20 the lens is non-removable so unless the factory was dusty, dust on the sensor and mirror is not a problem.
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Old Sep 14, 2004, 7:47 AM   #14
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Same principle with the E10/20 method, the sensor can be sealed tight against the prism so no dust can enter!

The lens can still be made interchangeable with a prism and dust collected on the input side of the prism is not on the focal plane!

Benefit?
1. No blank out period
2. Faster shutter release latency
3. No need for mirror lock-up (ie no banging at the most critical time)
4. Continous AF while the shots are being recorded (and not estimated as when the mirror is flipped up)
5. Make that rear LCD "useful"
6. A "real-time" histogram is essential! :-):-):-)
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