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#1
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A new member at our club had a small video camera, almost like a bullet
cam, but just slightly bigger. Al it takes is an SD card, he had a 1 gig card for this camera. He just clips it to his hat. I did not get the name of this camera. But I think this member stated that a famous skateboarder indorses them. Anyone have an idea which camera this is? Sure beats the hell out of my JVC video camera. Carl |
#2
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![]() wrote in message oups.com... A new member at our club had a small video camera, almost like a bullet cam, but just slightly bigger. Al it takes is an SD card, he had a 1 gig card for this camera. He just clips it to his hat. I did not get the name of this camera. But I think this member stated that a famous skateboarder indorses them. Anyone have an idea which camera this is? Sure beats the hell out of my JVC video camera. Carl Is this what you are talking about? http://www.viosport.com/store/custom...=hawk_overview Wayne HP-14 "6F" http://www.soaridaho.com/ |
#3
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![]() Wayne Paul wrote: wrote in message oups.com... A new member at our club had a small video camera, almost like a bullet cam, but just slightly bigger. Al it takes is an SD card, he had a 1 gig card for this camera. He just clips it to his hat. I did not get the name of this camera. But I think this member stated that a famous skateboarder indorses them. Anyone have an idea which camera this is? Sure beats the hell out of my JVC video camera. Carl Is this what you are talking about? http://www.viosport.com/store/custom...=hawk_overview Wayne HP-14 "6F" http://www.soaridaho.com/ Hi Wayne, Yea, that's it. I did some checking though, and see they mention it's not recommended for TV/DVD quality. Carl Standard Cirrus N8915 |
#4
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#5
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Hi Ron,
I have played with some bullet cams around the house for security using a video capture card and multible video cams hooked up to my Hunt video switcher. All of my soaring video's though have been shot from two place gliders so one pilot can fly while I shot video from my JVC Mini DV DVL300u. I'll research some of your equipment listed above. Thanks for your post. Carl Standard Cirrus N8915 |
#7
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The type of HDD used in this system has an altitude operating limit of
nominally 9840ft(3000m). A few operate just over 10K feet, but not by much. A pressurized case will be needed to for any video system using HDD's in the US west and many mountainous regions. At 3000m, atmospheric pressure is about .67 of sea level. At 5000m, it's about ..50 of sea level. The air pressure is needed to float the heads above the media. Going above the rated altitude leads to a potential head crash into the media. Not good. Now the question is the amount of heat dissipation needed to operate this equipment safely. That will drive the size of the case and case material or need for heat sinks along with the pressure differential. Interesting problem. Frank Whiteley |
#8
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I'm under the impression that all hard drives made in the last 30 years are
Winchester-type units with hermetrically sealed cases. I dismantled a crashed drive and it was very well sealed in a case that could easily withstand a hard vacuum. I know there's a 3000 meter operations limit in the spec's - why? Cooling? Maybe it's just an artifact from the pre-winchester era. I know there are plenty of HDD based MP3 players used by hang glider pilots that work fine up to 18K feet. However, my camcorder can use SD cards instead of tape and a 2GB card will store 6 hours of DV so maybe concerns abour HDD's are moot anyway. Bill Daniels "Frank Whiteley" wrote in message oups.com... The type of HDD used in this system has an altitude operating limit of nominally 9840ft(3000m). A few operate just over 10K feet, but not by much. A pressurized case will be needed to for any video system using HDD's in the US west and many mountainous regions. At 3000m, atmospheric pressure is about .67 of sea level. At 5000m, it's about .50 of sea level. The air pressure is needed to float the heads above the media. Going above the rated altitude leads to a potential head crash into the media. Not good. Now the question is the amount of heat dissipation needed to operate this equipment safely. That will drive the size of the case and case material or need for heat sinks along with the pressure differential. Interesting problem. Frank Whiteley |
#9
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hdd's are not sealed, the have air filters to exclude debris.
http://www.pcguide.com/ref/hdd/op/packAir-c.html iPods and other media players with hdd's have operating limits. Doesn't mean they won't work above their rating, but it's risky and may depend somewhat on the latitude. My DV recorder also will take SD cards and tapes and has AVI inputs, but I like the fly and forget method described above. The AV-500 now comes with 100GB drive. Frank |
#10
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![]() My DV recorder also will take SD cards and tapes and has AVI inputs, but I like the fly and forget method described above. The AV-500 now comes with 100GB drive. I was also impressed by the description, so the result was the order is made and the stuff is paid. Now you come with the possible drawbacks... ![]() 3000m in a nice wave... do i continue and possibly break the thing or do i consider 3000 already good enough and call it a day? As if there were not enough decisions to be made already... ![]() Ricardo PS: Of course, it's not really an option. If it brakes, it will brake!! |
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