10D issue - anyone noticed this before?

[kabell]

Sorry if this has been discussed here before, i couldn't find anything about it.

I just did this... took a whole lot of pictures in a row, jpg highest quality, maybe 30 pic (after every 9 pics waiting for the buffer to be ready, but the camera hadn't finished writing to the CF card). Then, after the last series of 9, i turned of the camera. Of course the camera kept writing to the CF card. After 5 seconds i tried turning it on again, but I couldn't operate the camera for nearly 45 seconds, untill the camera had finished writing the pictures to the card.

I don't know if this means anything in real life, but it could be an issue for missing that one important shot, if you just finish a series of pics, turns the camera off and something important happens, you will not be able to take the picture before 40 seconds later.

[CyberDyneSystems]

er....

I think the lesson is don't turn the Camera off while it's still writing to the CF,.. I think we are blessed that the Camera WON'T actually power down at that point thus loosing all the buffered images... why push things any further?

[PaulB]

This is not an issue with the 10D at all. It happens to be the way things work - if you are writing files to any electronic storage medium then there is always a lag. If you turned your computer off like that when writing your images to the hard-drive then you would lose those images - be thankful that the 10D is more intelligent (as CDS pointed out) and will not let you screw things up totally.

[kabell]

You misunderstand me.

Of course it's great that the cam keeps writing pics to the card!

But it's not great, that if you turn the camera off, and then turn the camera on again very shortly after, you can't operate the camera before it has finished writing the pictures.

You see what I mean?

What I would like was that even though the camera hasn't finished writing the pics, when you turn the camera on again it will be able to shot within 3 secs, while finishing writing the pics.

Try this:

Take a lot of images in a row.
Turn the camera off immeadiatly.
After 2 secs turn it on again.

You can't take a pic before it has finished writing the pics to the CF, even though the camera's "main buffer" (which can hold 9 images) at this point must be empty.

[kahfluie]

I guess I'm not sure why you would want to shut it off to begin with if you have the possiblility of another shot very near. If I am at an event I never turn it off until after the event is over... I just let it go into stand-by - it goes into stand-by eventually (depending on what you have it set to) if it's not writing to card or being used... makes it easier than turning it off, then not being able to turn it on because it needs to finish your buffer. Once the buffer starts clearing out, you can once again take photos, even if your buffer is not completely empty.

[RichardtheSane]

Basically the 10D is writing images to the card.
When you turn the camera on it checks one or two things on the card, which it cannot do if the card is being written to. It needs to know what the last filename on the card is so it can carry on, and these filenames are not generated untill the write stage.

You see the complexity of it, and canon think, why overcome such little issues when the majority of users will not be switching their camera off after every burst of shots. I for one will not even switch the camera off while it is writing to the card, and when I am out shooting the camera is turned on and set up for the day before I get out of the car, and remains on untill I get home. I like to see a review of my shots after I shoot too, so I can check histograms and if need be re-shoot.

Basically what I am saying is if you turn the camera off you risk missing a shot, if it is writing to the card or not. I personally could not consider that risk!

[CyberDyneSystems]

Here is a more pertinant "issue" with the 10D albeit along the same lines

Shoot a burst of 9 RAW images... now when your done and the camera is busily writing away to flush the buffer to the card,. hit the "menu" button....

Now we have a problem,. you haven't turned the camera off, but you may as well have. It will not let you do anything untill it has finished with the write to the card.

If you hadn't hit "menu",. you'd be able to shoot a pic again in a matter of seconds,. as soon as there is enough room in the buffer for a single raw file,. but having hit the Menu button,. that opportunity is lost,. and now you hacve to wait up to 45 seconds for the full nine images to be written to the CF

Aaaargh.

In both instances it is the users issue though,. as what is happening in both cases is the Camera is dedicationg itself to saving the images that we would have lost to our own stupidity...

Consider it the cameras way of saying.. "Hold on a minute,. I'm busy fixing your mistake" :mrgreen:

...it is asking a little much for our cameras to have sufficient processing power and imbeded system memory to "multitask"

We are not talking about Pentium 4 under the hood :)

[PacAce]

Here is a more pertinant "issue" with the 10D albeit along the same lines

Shoot a burst of 9 RAW images... now when your done and the camera is busily writing away to flush the buffer to the card,. hit the "menu" button....

Now we have a problem,. you haven't turned the camera off, but you may as well have. It will not let you do anything untill it has finished with the write to the card.

If you hadn't hit "menu",. you'd be able to shoot a pic again in a matter of seconds,. as soon as there is enough room in the buffer for a single raw file,. but having hit the Menu button,. that opportunity is lost,. and now you hacve to wait up to 45 seconds for the full nine images to be written to the CF

Aaaargh.


Actually, you can continue shooting after hitting the "menu" button if enough space has cleared in the buffer to allow another shot to be taken. All you have to do is half-press the shutter button to carry on with your shooting. :)

[CyberDyneSystems]

Hah! lol,,..
I think i must have been too scared to try!

[samdring]

Hah! lol,,..
I think i must have been too scared to try!

So it is a Pentium 4 then

[RichardtheSane]

Consider it the cameras way of saying.. "Hold on a minute,. I'm busy fixing your mistake"

:D :D :mrgreen: