Photo Forum / Digital Photography / Digital Photo / June 2008
Incompatible jpeg?
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Martin ©¿©¬ @nohere.net - 27 Jun 2008 17:02 GMT Hi I have a Canon IXUS 70 Digital Camera and each time I remove the memory card, put it in the PC, copy the pics, put the card back in the camera to view the pics, a message comes up for a lot of them saying 'incompatible jpeg'
Would anyone know what is happening between taking the card out & putting it back in the camera please?
 Signature Martin ©¿©¬
Clair Johnston - 27 Jun 2008 17:19 GMT > Hi > I have a Canon IXUS 70 Digital Camera and each time I remove the [quoted text clipped - 4 lines] > Would anyone know what is happening between taking the card out & > putting it back in the camera please? How/what software do you use to copy the pics? It is likely that thumbnails of the images are being created and being written back to the card. I would hope/expect that the jpegs are not being modified, but that is possible. More than likely the camera is complaining about thumbnails created to view images.
Clair
J.H. Holliday - 27 Jun 2008 19:52 GMT >> Hi >> I have a Canon IXUS 70 Digital Camera and each time I remove the [quoted text clipped - 10 lines] > > Clair To test, just drag/drop pix from card to HD...
Scott W - 27 Jun 2008 17:20 GMT > Hi > I have a Canon IXUS 70 Digital Camera and each time I remove the [quoted text clipped - 7 lines] > Martin > ©¿©¬ I sounds like you might be changing the photos on your PC and saving them back to the card. Something as simple as rotating the image would do this.
Scott
David J Taylor - 27 Jun 2008 17:29 GMT > Hi > I have a Canon IXUS 70 Digital Camera and each time I remove the [quoted text clipped - 4 lines] > Would anyone know what is happening between taking the card out & > putting it back in the camera please? Martin,
I wrote some software which can fix-up images for display back on the camera. There is a trial version here:
http://www.satsignal.eu/software/imaging.html#TVwriter
Cheers, David
Bob AZ - 28 Jun 2008 02:25 GMT > Would anyone know what is happening between taking the card out & > putting it back in the camera please? > -- > Martin > ���� Martin
Just a learning thing. I went through it also.
First never remove the card unless there is no other way. In this case just download the pictures to your computer. Store them in an organized location. Then after checking to make sure they are OK make a CD.
Then erase the card in the camera and go back and take pictures again.
The less times the card is removed from the camera the better off you are. A pin repair in the camera body can be $150.00 or more and is not a warranty item.
Bob AZ
David J Taylor - 28 Jun 2008 07:24 GMT Bob AZ wrote: []
> Martin > [quoted text clipped - 13 lines] > > Bob AZ Different from my experience, Bob. In all my years of using CF cards, I never damaged one or the camera. I /never/ downloaded from the camera with a cable, I /always/ used a card reader.
With today's computers, many already have a slot to read the SD cards I now use, so I have continued my practice of removing the cards from the camera to read the images. With SD cards, there are no "pins" in the camera, and I believe that the flat connections are rather less liable to damage that the pin/socket combination of a CF card.
Like you, I do format the card in the camera before use, but my immediate backup is now more likely to be a pair of portable HDs rather than CD/DVD.
Cheers, David
Ron Hunter - 28 Jun 2008 09:48 GMT > Bob AZ wrote: > [] [quoted text clipped - 31 lines] > Cheers, > David My pictures are usually downloaded via a card reader on my laptop, and then they are copied to TWO other computers for backup. Since my 'failure rate' with CDs has been around 75%, I wouldn't even consider that for a backup medium!
David J Taylor - 28 Jun 2008 11:11 GMT []
> My pictures are usually downloaded via a card reader on my laptop, and > then they are copied to TWO other computers for backup. Since my > 'failure rate' with CDs has been around 75%, I wouldn't even consider > that for a backup medium! Yes, I have two computers, and two external HDs, so four disks in all. I recently bought the external HDs, and loaded then from my existing CD/DVD backup. All but one of the CD/DVDs was readable, and that one had duplicated data in any case. [I don't smoke, and the environment here is not extreme.] I keep all my processed images ("prints") on all four HDs, and my "masters" (out of the camera, but with obvious duds removed) on at least the two external HDs, and on the internal HDs while I'm processing the data.
Cheers, David
Chris Malcolm - 29 Jun 2008 09:13 GMT > Bob AZ wrote: > [] [quoted text clipped - 15 lines] >> >> Bob AZ
> Different from my experience, Bob. In all my years of using CF cards, I > never damaged one or the camera. I /never/ downloaded from the camera > with a cable, I /always/ used a card reader. Me too, in the sense that I've been using CF cards a lot as transferrable data storage ever since they were invented, with no trouble at all. I've also been using ink pens and sharp knives for many decades without any trouble. But I do know that there are people who can't use a pen without serious risk of an inky mess or a sharp knife without cutting themselves. They're not the kind of people you'd want to lend a camera or indeed a CF card to.
 Signature Chris Malcolm cam@infirmatics.ed.ac.uk DoD #205 IPAB, Informatics, JCMB, King's Buildings, Edinburgh, EH9 3JZ, UK [http://www.dai.ed.ac.uk/homes/cam/]
Penis Kolada - 28 Jun 2008 07:30 GMT Bob AZ wrote:
>> Would anyone know what is happening between taking the card out & >> putting it back in the camera please? [quoted text clipped - 19 lines] > > Bob AZ Never remove the card?
I don't know anyone who does anything approaching even hobby levels of photography who works with only one card. I change mine several times a week at least and this is my eighth digital camera and I have never had a need for a pin repair. However, should such a problem arise while under warranty (and all my cameras are) it would most certainly be covered by warranty. Using multiple cards in a camera is normal practice and as such, is covered by the warranty.
By the way, while on the subject of warranty, I never fill in and return the warranty forms, it limits my rights under law, it means that I am agreeing to the warranty terms offered by the company rather than those legislated by my local trading laws. I am still covered, under trade practice law, even when I do not accept the offer to return the warranty agreement.
Downloading large raw files via USB when compared to using a high-speed card reader is enormously time wasting and inconvenient. I carry a reasonably powerful laptop with a built-in card reader and Photoshop at all times with my camera gear, and will often swap cards after just a few shots in order to closely examine them while in situ to make sure I have what I want before proceeding.
To each his own, but I find your advice to be a little strange.
PK
Ofnuts - 28 Jun 2008 09:48 GMT > Downloading large raw files via USB when compared to using a high-speed > card reader is enormously time wasting and inconvenient. I carry a [quoted text clipped - 4 lines] > > To each his own, but I find your advice to be a little strange. Same here, but at that point it becomes almost a matter of religion, like operating systems, text editors, Internet browsers...
 Signature Bertrand
Bob AZ - 28 Jun 2008 23:11 GMT > To each his own, but I find your advice to be a little strange. > > PK At a college where I do their repair and maintenence they have at least 20 Canon DSLRs that use CF cards. At least 10 have been out for pin repair and all cost money to repair. Each camera had a single or more pin bent and after many years of dealing with bent pins the only sure repair is replacement. Not sure how the pins are getting bent but the rule is now no cards removed.
I don't usually work on the DSLRs since I have little training on SLRs. I suppose I could fix them but it is a matter of having the time to do this.
For my own photography use there is little or no opportunity to check things as I go along. On occassion I do bring a small TV monitor that an assistant or myself can use to watch things. But with every exposure a potential lighting disaster and no chance to repeat the exposure I just have to depend on my skills to get the picture. The last big musical event I shot was 1200 or more images in the space of 4 hours. I do watch the exposure counter and take advantage of a break in the action to change a card if need be, but with the 12GB SanDisk cards I use card changing is not an issue.
When downloading I use the Nikon WIA I think it is program to download the images to the computer. I have had no problems with CDs retaining te images. Every so often I back up the CDs with a DVD.
I did note that Canon now has a downloader that has an option to download just the newly exposed images as well as several other new options. Maybe I will get to investigate this later this summer.
As you say to each his own.
Bob AZ
Allodoxaphobia - 29 Jun 2008 02:17 GMT On Sat, 28 Jun 2008 15:11:33 -0700 (PDT), Bob AZ wrote:
>> To each his own, but I find your advice to be a little strange. > > At a college where I do their repair and maintenence they have at > least 20 Canon DSLRs that use CF cards. At least 10 have been out for > pin repair and all cost money to repair. Each camera had a single or > more pin bent ......... Non sequitur!
In the same vein as: Politicians see no need to be prudent because they are not spending _their_ own money ; Students, faculty, and staff see no need to be careful because they are not (ab)using _their own_ cameras. (Been there...)
Amongst all my friends and colleagues I have only seen 1 (one) bent pin. And, this was on a friend's camera that she *lent to her B-I-L* ! With some dentals tools that I have in my kit, I was able to carefully straighten out the (CF) pin for her. The camera is still in service.
Jürgen Exner - 29 Jun 2008 03:35 GMT >> Would anyone know what is happening between taking the card out & >> putting it back in the camera please? > >First never remove the card unless there is no other way. In this case Nuts! How do you manage multiple cards without removing them from the camera?
>just download the pictures to your computer. Easiest way to do that is to plug the card into a decend card reader. No fumbling around with connector cables ("Where the f*** is that cable again?" I just had a teen breaking into tears because he was going to Now York for 5 weeks and couldn't find that cable.), no trying to pry those tiny rubber plugs from the connector in the camera ---and then tearing them off and loosing them, no crawling under the desk trying to find a vacant USB port, ... And the transfer is way faster, too, and doesn't require any proprietary software, either(*).
*: Yes, many cameras can be switched into mass storage device mode, but many can not.
>Then erase the card in the camera and go back and take pictures >again. > >The less times the card is removed from the camera the better off you >are. A pin repair in the camera body can be $150.00 or more and is not >a warranty item. And what's the difference between removing and plugging back a memory card versus plugging in and removing one of those tiny USB plugs? If at least all camera manufacturers would use a standard USB or micro USB socket. But no, many created their own proprietary formats, incompatible with anything else and even more fragile to make sure, the customer is "loyal" to their brand.
jue
Martin ©¿©¬ @nohere.net - 28 Jun 2008 12:57 GMT Thank you all for your replies My pictures are downloaded via a card reader on my PC or Laptop and then they are copied to a folder on my hard drive
I make no alterations or adjustments before removing the card & putting it back in the camera.
 Signature Martin ©¿©¬
pimpom - 29 Jun 2008 13:02 GMT > Hi > I have a Canon IXUS 70 Digital Camera and each time I remove [quoted text clipped - 8 lines] > & > putting it back in the camera please? Have you tried switching the write protection on before inserting the card into your card reader ?
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