If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
canon SX10is - max memory card capacity
yirgster wrote:
Max memory capacity for th Canon SX10is? I couldn't find it anywhere. According to http://www.dpreview.com/reviews/spec...non_sx10is.asp it supports. SD/SDHC/MMC cards. SD is limited to 2GB, SDHC in the current specification is limited to 32GB. jue |
#2
|
|||
|
|||
canon SX10is - max memory card capacity
yirgster wrote:
Thanks for your responses, but I'm not sure they addressed what I'm concerned about. That a memory card is available in a certain capacity does not imply, by itself, that the camera can support that capacity. I've run into this before. E.g., card can be 4GB, but camera only supports a max of 2GB. From your answers I infer that the SX10is will support whatever capacity the card has? Is this correct? That is, what is the maximum card capacity that the camera will in fact support (and not necessarily the maximum capacity of cards of that type). That's what my question was or should have been, and what I couldn't find on the various websites. A camera supporting SD cards has a limit of 2GB. Except that some non-standard 4GB SD cards were produced, and being non-standard, some cameras worked with them and some did not. If a camera is specified to work with SDHC cards, it should work up to the specified limit, which has been stated to be 32GB. David |
#3
|
|||
|
|||
canon SX10is - max memory card capacity
yirgster wrote:
Thanks for your responses, but I'm not sure they addressed what I'm concerned about. That a memory card is available in a certain capacity does not imply, by itself, that the camera can support that capacity. I've run into this before. E.g., card can be 4GB, but camera only supports a max of 2GB. From your answers I infer that the SX10is will support whatever capacity the card has? Is this correct? That is, what is the maximum card capacity that the camera will in fact support (and not necessarily the maximum capacity of cards of that type). That's what my question was or should have been, and what I couldn't find on the various websites. On Jun 27, 7:04 pm, J rgen Exner wrote: yirgster wrote: Max memory capacity for th Canon SX10is? I couldn't find it anywhere. According tohttp://www.dpreview.com/reviews/specs/Canon/canon_sx10is.aspit supports. SD/SDHC/MMC cards. SD is limited to 2GB, SDHC in the current specification is limited to 32GB. jue My wife is currently using a 4G SDHC card in her SX10IS and it works fine to full capacity. The camera recognizes and writes to my 8G SDHC card, but we never tied it to capacity. My view, is that unless you are recording movies, anything over 4G is overkill. I use 8G cards in my Nikon D300, but that is because I occasionally record in RAW. I would expect that the SX10IS will work fine with the 32G SDHC cards unless there is a problem with the card. Clair |
#4
|
|||
|
|||
canon SX10is - max memory card capacity
My Panasonic supports SD and SDHC, but for some reason cards
over 2 GB just don't work. Go figure. -- Christopher A. Young Learn more about Jesus www.lds.org .. "yirgster" wrote in message ... Thanks for your responses, but I'm not sure they addressed what I'm concerned about. That a memory card is available in a certain capacity does not imply, by itself, that the camera can support that capacity. I've run into this before. E.g., card can be 4GB, but camera only supports a max of 2GB. |
#5
|
|||
|
|||
canon SX10is - max memory card capacity
Stormin Mormon wrote:
My Panasonic supports SD and SDHC, but for some reason cards over 2 GB just don't work. Go figure. If it doesn't work with prime brand 4GB SDHC cards, I would have said that it's either faulty or needs a firmware upgrade. Be aware that 4GB SD cards (as opposed to SDHC cards) are non-standard, and may or may not work in any particular camera. David |
#6
|
|||
|
|||
canon SX10is - max memory card capacity
John Turco wrote:
David J Taylor wrote: edited for brevity A camera supporting SD cards has a limit of 2GB. Except that some non-standard 4GB SD cards were produced, and being non-standard, some cameras worked with them and some did not. If a camera is specified to work with SDHC cards, it should work up to the specified limit, which has been stated to be 32GB. David Hello, David: "Should work" doesn't mean "will work," alas. I've read of some individual digicams' specifications, which state SDHC limits, well below 32GB (e.g., 8GB). That's not very shocking, though. If you'll recall, plenty of older camera models (such as those, using Compact Flash) couldn't fully exploit their memory card formats' capacity, either. Cordially, John Turco Precisely why I wrote "Should work", John. Yes, I had lots of fun with cameras not working with CF cards. In the early days, I had to take 2 x 30MB back to the shop and have them replaced by 3 x 20MB. As that was 1998, you don't want to ask what the price of 30MB CF cards was then! Cheers, David |
#7
|
|||
|
|||
canon SX10is - max memory card capacity
John Turco wrote:
[] Hello, David: My first digicam (Largan "Lmini 350") couldn't even use external storage, as it was limited to its own, paltry 2MB of internal memory! The next two cameras (DC3200 and DX3900, both Kodak products) took CF, and I marvelled at how little (in physical dimensions) the cards were. Beginning with a secondhand DX6490, all of my various Kodak models are SD-based. Now, SD puppies are truly tiny -- and that's without counting microSD, I might add. ;-) In some respects, John, I am glad to see the back of CF cards, preferring the slide contacts on SD to the embedded pins on the CF socket. Micro-SD I do have for the GPS, but I am more careful when I change that (as a day's trek is usually well under a megabyte, and as that card has some 1400MB free, I don't need to remove it all that often. I use a mixture of 2GB SD and 4GB SD-HC now. For my purposes I haven't found card speed to be a limiting factor - the camera buffer is enough, although the faster reading of higher-speed cards and an optimised USB 2.0 hi-speed setup is nice. Cheers, David |
#8
|
|||
|
|||
canon SX10is - max memory card capacity
On Fri, 10 Jul 2009 09:40:04 -0700, John Navas
wrote: On Fri, 10 Jul 2009 06:25:59 GMT, "David J Taylor" wrote in : John Turco wrote: I use a mixture of 2GB SD and 4GB SD-HC now. For my purposes I haven't found card speed to be a limiting factor - the camera buffer is enough, although the faster reading of higher-speed cards and an optimised USB 2.0 hi-speed setup is nice. Depends on the camera, of course, and how you use it. While there are lots of times when slower cards make no difference, I saw enough differences between a middle-of-the-road Kingston card and SanDisk Extreme III with my Panasonic DMC-FZ28, especially in critical situations, that I've now switched entirely to the latter, and settled on 8 GB as my own price performance sweet spot, in part because I can also use these cards as super fast computer DVD replacements. Flash card speeds tends to go down as cards get larger, making it more important to have a faster card at higher capacities. Lastly, if you're going to use a fast card like the SanDisk Extreme III with a card reader(writer), be warned that not all SDHC readers are created equal -- many will severely limit speeds, which is why I also use and recommend the fast SanDisk MicroMate SDHC Reader. Good points. There's lots of variables involved in which the card speed might or might not be important. As well as the capabilities of any card-reader if using that to access your files. Keep in mind too that advertised speed rates of cards are their READ speeds which is always faster, not their WRITE speeds. There is often a wide difference between the two. You have to buy and test them to find out the true write speeds, or find benchmark lists online by those who have tested cards for their write speeds. Speed of the camera's own firmware writing to card being one bottleneck. [For some interesting information: See the difference in the very same SD cards being used on various camera platforms and how their speeds change from Digic II, III, and IV camera processors. http://chdk.wikia.com/wiki/Benchmarks The interesting part of these tests as these are done in-camera. Direct camera to card benchmarks. How the camera will see and use them independent of any card-reader and computer CPU speed tests. Also note the difference in speeds between the very same cards being formatted in FAT16 or FAT32. FAT16 often affording much faster access times, ~25% faster. That's like going from Class-4 to Class-6, for free.] If burst-modes are often needed. Size of files being saved. JPG? RAW? etc. If video mode is important. What audio-sampling rate you have chosen for videos. If you can adjust that video quality bandwidth over a wide range as in CHDK supported cameras. There are just way too many variables for anyone to be able to give advice to another on what speed of card they should get for their camera. Camera platform, camera usage, shooting styles, no two people's needs will be identical. Some interesting findings: Oddly, and going against all known information. I have found that if I am needing a fast burst rate for some experiment and the card starts to bog-down to 2/3rds to 1/2 its beginning write-speed after some 50 to 100 frames. If I take out that card and use Window's Defragmentation utility on it (in a card reader), then all original access speed returns. Normal 3rd-party defraggers seem to have trouble recognizing removable media. I've tried quite a few to see if others would work. You might have to perform this twice, as it seems like the 1st-run defragmentation isn't the same as subsequent ones. After 2 or 3 defragmentations Windows' defragger is no longer able to change any of he file structure on the card and there is no added benefit by doing this again. This shouldn't be true, due to the random-access nature of memory cards. And indeed you'll read this cut-in-stone information everywhere on the net. That "Defragmentation on any memory card is useless and only detracts from the available R/W life of the card." As I also read when I went looking for an explanation to this oddity. But I've run into this problem so often in the past and used defragmentation as a simple fix each time, that I'm now convinced that there is a fragmentation bottle-neck on random-access memory cards. Anecdotal evidence, but one of which I've now convinced myself through real-world tests and uses, in spite of all the "learned" advice all over the net. (Though this wouldn't be the first time, far from it, that some common advice all over the internet posted by self-proclaimed experts has been proven wrong by my own tests and findings.) Ignore all the advice you read online and try Window's defragger the next time your card is acting sluggish. See if it doesn't restore fast access time again. It does on all of the ones I've tried this on. I don't need to do this often, but after using an SD card for multiple uses (MP3 files, portable-apps, etc.) if there has been a lot of file changes on the card between photography sessions, then I'll snug-up all the files again after I have spooled off all the images. Leaving the next new camera images for the large clear chunk beyond all the files already retained on the card. I would simply do an in-camera reformat but my cards are used for many devices and multiple uses. The CHDK camera cards also keep the CHDK operating system on them (with boot code, settings, special FAT16 formatting for extra speed, scripts, e-books, etc.). Reformat is not very practical for my needs. Defrag SD to the rescue. |
#9
|
|||
|
|||
canon SX10is - max memory card capacity
John Navas wrote:
On Tue, 14 Jul 2009 05:25:49 +1000, Bob Larter wrote in : John Navas wrote: Because flash must be erased in device-dependent blocks, random writing is often much slower than sequential writing, which can be a problem when the file system becomes fragmented. Device-dependent block size can also be a problem when reading fragmented files, but tends not to be as significant as writing. So defragmenting can be helpful, but equally helpful is to just erase the card before reuse. The best technique of all is to re-format your card after downloading your photos from it. That way, you're not fighting the automatic wear-leveling algorithm in the card. That's no different than erasing the card, unless you're talking _long_ format, which is what would actually engage the wear leveling mechanism. I won't even get into wear leveling, but reformatting is way preferable to erasing all, as you always start with a clean slate, no fragmentation, and *it is way faster on my cameras* (Canons). -- John McWilliams |
#10
|
|||
|
|||
canon SX10is - max memory card capacity
On Mon, 13 Jul 2009 14:23:09 -0700, John McWilliams
wrote: John Navas wrote: On Tue, 14 Jul 2009 05:25:49 +1000, Bob Larter wrote in : John Navas wrote: Because flash must be erased in device-dependent blocks, random writing is often much slower than sequential writing, which can be a problem when the file system becomes fragmented. Device-dependent block size can also be a problem when reading fragmented files, but tends not to be as significant as writing. So defragmenting can be helpful, but equally helpful is to just erase the card before reuse. The best technique of all is to re-format your card after downloading your photos from it. That way, you're not fighting the automatic wear-leveling algorithm in the card. That's no different than erasing the card, unless you're talking _long_ format, which is what would actually engage the wear leveling mechanism. I won't even get into wear leveling, but reformatting is way preferable to erasing all, as you always start with a clean slate, no fragmentation, and *it is way faster on my cameras* (Canons). Which isn't always practical for some of us that do a lot of multitasking with a wide array of interests and creative needs. I also like to use Micro-SD cards so they may be swapped between many devices at any time. Always having emergency backup memory for whatever task or device has momentary priority. Between the file-managers built into CHDK cameras and Rockbox**, for my MP3 player to listen to favorite tunes while out on a shoot, which even has a text-editor built in to allow me to write or tweak scripts for my CHDK camera while out in the field; it's almost like carrying a laptop along to manage files. All fitting in one roomy jacket pocket. Now if only one of them would have a defrag utility in them too. Reformat is very impractical for some of us. My previous text about this: ... after using an SD card for multiple uses (MP3 files, portable-apps, etc.) if there has been a lot of file changes on the card between photography sessions, then I'll snug-up all the files again after I have spooled off all the images. Leaving the next new camera images for the large clear chunk beyond all the files already retained on the card. I would simply do an in-camera reformat but my cards are used for many devices and multiple uses. The CHDK camera cards also keep the CHDK operating system on them (with boot code, settings, special FAT16 formatting for extra speed, scripts, e-books, etc.). Reformat is not very practical for my needs. Defrag SD to the rescue. ** Rockbox's file-renaming feature is very handy to circumvent the Garmin 2025 map-sector limit. Carry half the world on one Micro-SD card in about 9 files on an 8G GPS card. Take it out and insert it into your compact Rockbox player, then rename the file of your world maps that you want to "gmapsupp.img" as needed. My MP3 player is only 1.3"x3" (GPS is 2"x4"), but such a handy device to carry to supplement my other tools when Rockbox is installed on it. Not to mention the 20 days, or so, worth of tunes and audio-books, it even plays videos (albeit at very tiny resolution). Camera, GPS, MP3 player, all fitting in one roomy pocket. All using the same memory format, and they all support each other technically too. Can't ask for more than that. It's like the ultimate combo of adventuring photographer's needs. p.s. Thanks John, for posting info to reaffirm my own findings. Had I found that first I wouldn't have wasted so much time trying to find something on the net that refuted all the parroted net-bs out there that I constantly ran into, that went 100% in opposition to my own observations. This is why I NEVER believe anything posted to the net, until I have personally tested it myself. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
canon SX10is - max memory card capacity | Bert Hyman | Digital Photography | 0 | June 27th 09 11:51 PM |
Panasonic LZ-2 memory capacity | isw | Digital Photography | 12 | May 28th 09 02:35 AM |
Which high capacity CF card for Canon S70? | Reestit Mutton | Digital Photography | 0 | February 8th 05 02:37 PM |
Capacity of Canon A75 CF Card | MB_ | Digital Photography | 4 | October 25th 04 08:59 PM |