FAST SDHC Memory for the EX1
- Thread starter Stevet
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Stevet
Veteran
Thanks Ned.
That's good info...
Hmm..
Makes me want to try the 16GB Transcend and the Kensington.
You may want to try the 16GB Transcend / Kensington with the EX3 too.
Sometimes the largers cards have slower access times.
I think the new Extreme may be a safer bet.
If we could get AFT to get their expresscard adapter to work with the Extreme III 30MB/s, this would be the best for the EX1. The AFT allows the memory hatch to close on the EX1.
Also, if AFT were to write the needed additional coding to access the new Extreme III 30MB/s full data rate capability, this combo might work with even the S&Q modes.
That's good info...
Hmm..
Makes me want to try the 16GB Transcend and the Kensington.
You may want to try the 16GB Transcend / Kensington with the EX3 too.
Sometimes the largers cards have slower access times.
I think the new Extreme may be a safer bet.
If we could get AFT to get their expresscard adapter to work with the Extreme III 30MB/s, this would be the best for the EX1. The AFT allows the memory hatch to close on the EX1.
Also, if AFT were to write the needed additional coding to access the new Extreme III 30MB/s full data rate capability, this combo might work with even the S&Q modes.
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Stevet
Veteran
Carl Marxx
Active member
Carl Marxx
Active member
I have tested in my computer only the Transcend 16Gig SD memory and it is twice as fast as the Patriot 8Gig card in continious reading and writing; both are class 6, so it must be that all class 6 cards are not created equal. Transend memory might be the "Holly Grail" of SD cards so far, and the answer for reasonably priced one hour ($59.99) HQ video. -- Carl
Tomas Riuka
Well-known member
me too.. but i guess you get what you pay for... i will never rely on cheap cards, like the ones you're testing.. i had myself a few cards dead in my still camera,
despite lifetime warranty of the manufacturer, also a number of my colleagues
had problems with card...
once you loose something important on the card, you will never stop blaming
yourself for saving on cheaper cards... don't reinvent the bicycle... cars will get
cheaper, and the ones by sony sxs, or p2 cost a lot, for a reason..
2 cents.
Stevet
Veteran
Hmmm...
I've lost stuff on just about everthing I've owned....
Not to mention inexpensive does not always imply it will not last or offer as much protection as something that cost more.
I've had hard drives crash regardless of how much I've spent on them.
Costing more does not "always" mean something will be better.
4 cents
I've lost stuff on just about everthing I've owned....
Not to mention inexpensive does not always imply it will not last or offer as much protection as something that cost more.
I've had hard drives crash regardless of how much I've spent on them.
Costing more does not "always" mean something will be better.
4 cents
adamr316
Well-known member
I'm with Tomas.
A lot of things that I tape are once-in-a-lifetime bits of footage or in the case of movies takes a lot of time to setup/get down. What I may have saved in the beginning on buying cheaper media may cost me in the end.
The SxS cards don't have these read/write issues and I'd rather pay a premium for reliable, certified media than lose any of my valuable footage. My solution was to get a laptop and an external USB hard drive from Wolverine (take your pick, I went with them because they have memory card slots built-in for my still camera and are powered from the USB port) and offload on-site when I need to.
Don't get me wrong, I do think Sony/SanDisk's cards are overpriced, much like ink cartridges are for printers. But I know that they "just work."
I do want to thank you all for doing this work/discovering these new ways of using the EX1/EX3. Perhaps it will help drive down the cost of SxS media...this really is capitalism/the marketplace working at its finest. Especially with the economy the way it is and the value of USD dropping I'm happy for anyone to benefit.
A lot of things that I tape are once-in-a-lifetime bits of footage or in the case of movies takes a lot of time to setup/get down. What I may have saved in the beginning on buying cheaper media may cost me in the end.
The SxS cards don't have these read/write issues and I'd rather pay a premium for reliable, certified media than lose any of my valuable footage. My solution was to get a laptop and an external USB hard drive from Wolverine (take your pick, I went with them because they have memory card slots built-in for my still camera and are powered from the USB port) and offload on-site when I need to.
Don't get me wrong, I do think Sony/SanDisk's cards are overpriced, much like ink cartridges are for printers. But I know that they "just work."
I do want to thank you all for doing this work/discovering these new ways of using the EX1/EX3. Perhaps it will help drive down the cost of SxS media...this really is capitalism/the marketplace working at its finest. Especially with the economy the way it is and the value of USD dropping I'm happy for anyone to benefit.
Stevet
Veteran
Well, I can't blame anyone for wanting the tried and well tested and approved memory. That goes without saying! LOL
I've cleary written in my earlier post that I do not suggest anyone run out and buy this combo yet. I need more time to test.
But at the same time, I see a lot of us stringing video capture drives to their cameras and relying on another capture device.
I've read numerous horror stories of problems with these capture devices. I'll choose this memory card method anyday over relying on external video hard drive capturing.
Like I mentioned, it may not work in the end, but it was worth a shot. Also, note that "so far" it appears it works in the same manner that Sony's new PHU-60K Video capture drive that also is not fast enough to support the cameras S&Q (over cranking) mode.
Actually, based on the feedback with Sony's PHU-60Kvideo capture drive, it's been erroring just running standard HQ video modes:
http://www.dvinfo.net/conf/sony-xdcam-ex-cinealta/130742-phu-60k-problems-update.html
Based on this report, I'd feel more confident with the SDHC solution...
I've cleary written in my earlier post that I do not suggest anyone run out and buy this combo yet. I need more time to test.
But at the same time, I see a lot of us stringing video capture drives to their cameras and relying on another capture device.
I've read numerous horror stories of problems with these capture devices. I'll choose this memory card method anyday over relying on external video hard drive capturing.
Like I mentioned, it may not work in the end, but it was worth a shot. Also, note that "so far" it appears it works in the same manner that Sony's new PHU-60K Video capture drive that also is not fast enough to support the cameras S&Q (over cranking) mode.
Actually, based on the feedback with Sony's PHU-60Kvideo capture drive, it's been erroring just running standard HQ video modes:
http://www.dvinfo.net/conf/sony-xdcam-ex-cinealta/130742-phu-60k-problems-update.html
Based on this report, I'd feel more confident with the SDHC solution...
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Tomas Riuka
Well-known member
hard drives are not reliable either... i guess that's why you have raids, backups etc.. how many posts did you see p2 or sxs cards failing ? me, none. maybe i just got lucky and all of them passed through my eyes...
i just don't think sony or panny make 800$ profit of 1400$ worth card.. i guess it's the same with ram.. you can buy a stick for 40$, and for 240$... price is for
a reason.. it's like you can have a class mercedes and s class.. just because it's a mercedes , it doesn't mean that it will drive the same, or if you can get
a class be such fast as s class with 5liter 400hp engine, a class won't become s class..
i just don't think sony or panny make 800$ profit of 1400$ worth card.. i guess it's the same with ram.. you can buy a stick for 40$, and for 240$... price is for
a reason.. it's like you can have a class mercedes and s class.. just because it's a mercedes , it doesn't mean that it will drive the same, or if you can get
a class be such fast as s class with 5liter 400hp engine, a class won't become s class..
Stevet
Veteran
Update:
I'm performing more tests tonight in HQ mode with the Kensington and new Extreme III 16GB 35MB/s. I have yet been able to make this combo error.
Actually, it's working great "so far". This is only my second day, but it looks promising.
I can take the Extreme SDHC card into my card reader and play the files right from the SDHC card and they play back full 1920x1080P HQ footage smooth without any issues or stutter.
These new Extreme cards are REAL fast.
Nikon worked with SanDisk to make sure this card would work with the new Nikon D90 with its fast image acquisition and movie mode.
It's kind of slick just pulling the small SDHC card out and having quick and clean access to your files. Just leavee the expresscard adapter in the camera.
I'm performing more tests tonight in HQ mode with the Kensington and new Extreme III 16GB 35MB/s. I have yet been able to make this combo error.
Actually, it's working great "so far". This is only my second day, but it looks promising.
I can take the Extreme SDHC card into my card reader and play the files right from the SDHC card and they play back full 1920x1080P HQ footage smooth without any issues or stutter.
These new Extreme cards are REAL fast.
Nikon worked with SanDisk to make sure this card would work with the new Nikon D90 with its fast image acquisition and movie mode.
It's kind of slick just pulling the small SDHC card out and having quick and clean access to your files. Just leavee the expresscard adapter in the camera.
Stevet
Veteran
I guess it depends on several factors, sustained data rate for write and read, and how fast it can perform random write and reads.
I posted the performance for the new SanDisk Extreme III 16GB 30MB/s drive in this thread yesterday.
The Sustained data rate is over 15MB/s but can be as low as 4MB/s with random 512K file writes. I guess it really depends on how much the EX1 can buffer before it relies on emptying its internal cache for file writes.
HQ data from the Sony EX1 is normally around 35mb/s and can peak at 40mb/s.
So based on the 40mb/s: 40mb/s /8 = 5MB/s
It's no doubt around 5MB/s based on a 16GB card holds about 52 minutes of HQ footage.
5 x 60 = 300MB/minute = 15.6GB
So the extreme III SDHC based on write time tested via the computer is able to write sustained writes at 3X the video data write. But sustained rate is not everything - no doubt one of the most important, but actual performance is based on quick access times and the ability for fast random writes.
Also, these numbers are based on computer testing and may (and probably) will be different on data rates with the EX1.
I posted the performance for the new SanDisk Extreme III 16GB 30MB/s drive in this thread yesterday.
The Sustained data rate is over 15MB/s but can be as low as 4MB/s with random 512K file writes. I guess it really depends on how much the EX1 can buffer before it relies on emptying its internal cache for file writes.
HQ data from the Sony EX1 is normally around 35mb/s and can peak at 40mb/s.
So based on the 40mb/s: 40mb/s /8 = 5MB/s
It's no doubt around 5MB/s based on a 16GB card holds about 52 minutes of HQ footage.
5 x 60 = 300MB/minute = 15.6GB
So the extreme III SDHC based on write time tested via the computer is able to write sustained writes at 3X the video data write. But sustained rate is not everything - no doubt one of the most important, but actual performance is based on quick access times and the ability for fast random writes.
Also, these numbers are based on computer testing and may (and probably) will be different on data rates with the EX1.
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GuyB
Well-known member
If we find the Sandisk and Kensington combo can't be faulted in SP & HQ modes then I would much rather trust this solution than copying to HDD in the field. All I worry about is a HDD crash before I get the chance to back up the data again.
Not to mention there will no longer be a need to format media during the job. It doesn't matter what is going on at the time, the sinking feeling of formating media is one I really want to avoid.
The recording process is more than robust enough to tell you if it is having any trouble recording, and I have no problem with the reliability of premium level Sandisk media.
RED records to standard compact flash cards, their only requirement is one of speed.
Not to mention there will no longer be a need to format media during the job. It doesn't matter what is going on at the time, the sinking feeling of formating media is one I really want to avoid.
The recording process is more than robust enough to tell you if it is having any trouble recording, and I have no problem with the reliability of premium level Sandisk media.
RED records to standard compact flash cards, their only requirement is one of speed.
Tomas Riuka
Well-known member
Steve,
i'm sure there is a lot of people who apreciate your work and such solutions are way to go,
but i guess i'm pass through this period trying to find something cheaper, cause home made
solutions will never be so reliable, it's just because of reliability..
i'm sure there is a lot of people who apreciate your work and such solutions are way to go,
but i guess i'm pass through this period trying to find something cheaper, cause home made
solutions will never be so reliable, it's just because of reliability..