SD card differrence
Mar 18, 2018 11:29:36 #
Is there really any difference in using a 5 dollar 64gig SD card or paying 20 bucks for the same item? Any card is basically a storage device of a series of ones or zeros. So how does one store a better image than the other?
Mar 18, 2018 11:31:53 #
Not quite sure, but I believe that some cards (probably the more expensive ones) are capable of faster writing, hence would be better for taking multiple images. Is that correct?
Mar 18, 2018 11:33:01 #
Mar 18, 2018 11:35:31 #
tomad
Loc: North Carolina
cuckoobob wrote:
Not quite sure, but I believe that some cards (probably the more expensive ones) are capable of faster writing, hence would be better for taking multiple images. Is that correct?
Correct plus more expensive cards should in theory be manufactured under more stringent practices and using better materials so should perform better and last longer. You get what you pay for...
Mar 18, 2018 11:38:35 #
cuckoobob wrote:
Not quite sure, but I believe that some cards (probably the more expensive ones) are capable of faster writing, hence would be better for taking multiple images. Is that correct?
Price usually equals reliability and definitely faster speeds in most cases.
While much is made about class of the card, class 4, 6 & 10.... that refers to the MINIMUM sustained speed, read & write. Minimum is not usually a quick speed in todays cameras.
For me, I want a reliable card and I want the fastest write speed I can get for burst shooting and even for single shots so my camera is ready and waiting for me to click the shutter again.
I rely on the site: http://www.cameramemoryspeed.com/ to find the fastest and most reliable cards for use in my camera.
I also limit my cards to 16 GB or 32 GB, I feel a 64 GB card just begs for the loss of too much if the card becomes lost or unaccessible for any reason.
Mar 18, 2018 11:49:35 #
Bud Black wrote:
Is there really any difference in using a 5 dollar 64gig SD card or paying 20 bucks for the same item? Any card is basically a storage device of a series of ones or zeros. So how does one store a better image than the other?
Bud, It has to do first with reliability. I worked in the Semiconductor business which is what is in the SD cards. The cheaper cards have a higher mean time to failure. I would not want to risk important images to a card like that. Second, is speed. How fast your camera can read that information. So bottom line yes their is a difference.
Mar 18, 2018 11:51:58 #
Dngallagher wrote:
Price usually equals reliability and definitely fa... (show quote)
Agree 100%. You can really tell the difference in burst mode! I also limit the size of my cards, 95% of the time I use a 32gb card.
Don
Mar 18, 2018 12:03:50 #
Dngallagher wrote:
I also limit my cards to 16 GB or 32 GB, I feel a 64 GB card just begs for the loss of too much if the card becomes lost or unaccessible for any reason.
Don't you have a dual card slot camera backing up images in real time?
Mar 18, 2018 12:06:01 #
rgrenaderphoto wrote:
Don't you have a dual card slot camera backing up images in real time?
I did in my D7100, but have switched to Canon 80D - single slot....would love a second slot in the Canon!
Mar 18, 2018 13:22:52 #
tomad wrote:
Correct plus more expensive cards should in theory be manufactured under more stringent practices and using better materials so should perform better and last longer. You get what you pay for...
Higher quality control on the manufacturing process will usually result in a higher price.
Those sold real cheaply are also usually made the same way. "I" would not trust them for good reliability.
(I prefer Sandisk.)
Mar 18, 2018 14:57:18 #
PixelStan77 wrote:
The cheaper cards have a higher mean time to failure.
Did you mean lower?
Mar 18, 2018 15:48:18 #
OddJobber wrote:
Did you mean lower?
The average time to failure is higher..it will fail at a higher rate
Mar 18, 2018 16:12:40 #
I would rather have a six year MTBF than a six month one.
MTBF - mean time between failure
MTTF - mean time to failure
(But I've always <probably erroneously> referred MTBF as mean time before failure. (Like MTTF)
MTBF - mean time between failure
MTTF - mean time to failure
(But I've always <probably erroneously> referred MTBF as mean time before failure. (Like MTTF)
Mar 18, 2018 17:00:03 #
If you spend many hundreds/thousands of $ on equipment to produce an image file, is the result valuable enough to you to spend $20 (vs 5$) to you to choose reliable (vs cheap/unknown quality) storage to preserve that image?
Mar 18, 2018 18:50:04 #
PixelStan77 wrote:
The average time to failure is higher..it will fail at a higher rate
If the average time to failure is higher, doesn't that mean it will be longer before it fails?
If the failure RATE is high, it will probably have a shorter length of time before it fails.
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