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09-09-2006, 08:49 AM   #1
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Shake reduction & camera life

I was just thinking, with the sensor moving up and down and back and forth at a high rate of speed (like 1000 rpms siting on Jannamans tractor), I wonder what the life of the cables that connect the sensor to the body.

09-09-2006, 09:21 AM   #2
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QuoteOriginally posted by Brew1brew Quote
I was just thinking, with the sensor moving up and down and back and forth at a high rate of speed (like 1000 rpms siting on Jannamans tractor), I wonder what the life of the cables that connect the sensor to the body.

Have no idea but it certainly isnt something i would lose any sleep over
09-09-2006, 06:30 PM   #3
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No idea but...

I probably won't worry too much. I know Pentax's SR is different from KM's AS but it is similar from what people have been saying. And KM has been using the technology for a while now and we have still yet to hear such breakdown from KM cameras.

cheers,
Kenny


QuoteOriginally posted by Brew1brew Quote
I was just thinking, with the sensor moving up and down and back and forth at a high rate of speed (like 1000 rpms siting on Jannamans tractor), I wonder what the life of the cables that connect the sensor to the body.
09-09-2006, 08:58 PM   #4
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QuoteOriginally posted by kjao Quote
I probably won't worry too much. I know Pentax's SR is different from KM's AS but it is similar from what people have been saying. And KM has been using the technology for a while now and we have still yet to hear such breakdown from KM cameras.

cheers,
Kenny
I'm not really worried about it. I'm an engineer in telecom and work with new tech all the time. It's just a thought about what could fail. I will be buying a k10d some time in the next year. And think the SR is a great idea. it's just the engineer in me was wondering how long the conductors will last when they are being moved back and forth.

Les

09-10-2006, 06:14 PM   #5
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Just like the cable to my CD player tray becane disconnected with the tray going in and out all the time. Time will tell.
09-10-2006, 11:52 PM - 1 Like   #6
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QuoteOriginally posted by Brew1brew Quote
I was just thinking, with the sensor moving up and down and back and forth at a high rate of speed (like 1000 rpms siting on Jannamans tractor), I wonder what the life of the cables that connect the sensor to the body.
And if the sensor will shake off dust at every lens change that shouldn't make things last much longer either...

Wim
09-11-2006, 08:57 PM   #7
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Has it been made known what distance the sensor travels in shaking its bootie?
The magnitude of the oscillation might help put the likely wear in perspective?


Of course, also, might there be a chance that the connections are designed as spring contacts? Even though introducing electrically noisy connections would then seem likely?!
09-12-2006, 09:31 PM   #8
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Looking at the sensor assembly:


...the connectors are bundled together and look as though a fair length has been used such that the movement wouldn't stress the wires too much at any specific point. Of course, if they resonated enough (like a guitar string) then perhaps you'd have problems pronto, but we'll assume that that's been anticipated and avoided, hopefully ;-)

09-23-2006, 10:16 PM   #9
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Pentax has now posted some detailed information on the system:

http://www.pentaximaging.com/files/product/PENTAX%20SR%20Description_091506.pdf
09-27-2006, 05:58 AM   #10
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Sensor moves on a very short distance, less than a cable thickness. So there is no problem IMHO.
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