Now I'm totally confused. The first part says the images were
transferred to the computer OK but something unusual happened to them
after they got there. The second part says the problem moved to a
different computer along with the card and reader. Got a different card
or reader?
Also I don't know what it means (physically) to "re-export" an image
from the iphoto library on a Mac. I don't know if that means the image
was physically copied to a different place or only that a pointer to it
was handed off. There are different implications of each.
Chuck Norcutt
siddiq@xxxxxxx wrote:
> Re-exported the images from iphoto library, opened in preview/finder,
> and they looked fine! last time around, they were bad in preview so
> couldn’t even import.
>
> tried the same card, in the card reader, on another Mac, and a PC,
> same deal, partial images.
>
> On Jul 2, 2010, at 1:43 PM, Chuck Norcutt wrote:
>
>> On the surface at least it sounds like the preview/finder
>> application is corrupt. Can it be reinstalled? There are two more
>> possibilities I can think of. Since you're using a Mac (which has
>> more integrated code than typically found on a PC) there could be a
>> common subroutine used by the preview/finder that is used by other
>> applications. If that's true and that's where the problem is it
>> may show up on other Mac image applications. The second
>> possibility is that your computer has a physical memory corruption
>> problem that only shows up at certain addresses. That means that
>> whether preview/finder shows the problem or not depends on where in
>> memory it's loaded or where its image memory is allocated. Try
>> loading more stuff ahead of your image apps in order to cause
>> memory allocations to change. Does the behavior of preview/finder
>> change?
>>
>> Chuck Norcutt
>>
>>
>> siddiq@xxxxxxx wrote:
>>> Hi Chuck;
>>>
>>>
>>> On Jul 2, 2010, at 10:17 AM, Chuck Norcutt wrote:
>>>
>>>> Time for some diagnostic work and some questions.
>>>>
>>>> Are you shooting raw? If so do you know anything about the
>>>> file structure of an E3 raw file. Or are you shooting JPEG?
>>>> When the images display on the LCD can you magnify them?
>>> JPEG, and yes, can magnify just fine on camera.
>>>
>>> <snip>
>>>> What you have to figure out is whether what the camera is
>>>> writing is corrupted or what's being read back is what's
>>>> corrupted or if its your computer or reader that's doing the
>>>> corruption on either the initial read/write or the later read
>>>> back.
>>> First time (when I lost all the photos, only 1/5 showing, rest
>>> just gray blank), I transferred the photos via a Sandisk USB2
>>> multicard reader (which I’ve been using for years). 2nd time
>>> (last night) was E3>Macbook Pro vis USB.
>>>
>>> I just discovered something else: The photos are fine when
>>> imported/viewed in iPhoto, but are ‘corrupt’ (aka only partially
>>> visible, rest gray blank) when opened up in Preview/Finder (i
>>> guess the PC equivalent is Windows Explorer). Very odd.
>>>
>>>> The first thing to do is replace the card with another one. Do
>>>> you see the same thing? If not it's the card. If so you need
>>>> to test different modes. If you were shooting raw try JPEG or
>>>> vice-versa or even raw + JPEG. Can you read back and magnify
>>>> and see the entire image on the LCD. That means not just
>>>> viewing the image immediately after it was taken (probably
>>>> still in an internal buffer) but also switching to display mode
>>>> on the camera and being able to step through multiple images
>>>> and fully magnify them on the LCD. If this works on the second
>>>> card but not on your original then it's the original card. If
>>>> it doesn't work on the second card then the problem is with the
>>>> camera. If the test (including fully magnifying more than one
>>>> image on the LCD) works on both cards then you've got a problem
>>>> with your computer or the card reader being used.
>>> At this point I’m starting to suspect the computer, or rather the
>>> application. Makes no sense, but more sense than either the
>>> card, or camera. Why else would one application show the photos
>>> fine, another not?
>>>> My 5D can't do it but I seem to recall that the E3 can do an
>>>> in-camera raw to JPEG conversion. Does that work?
>>> Not sure, never shot raw :(
>>>
>>>> Chuck Norcutt
>>>>
>>> Thanks!
>>>
>>>>
>>>> siddiq@xxxxxxx wrote:
>>>>> G’day all;
>>>>>
>>>>> Not for the first time, I’m seeing only a third, or ⅔, of an
>>>>> image when I download them from the E3. They display fine on
>>>>> the LCD, but when I copy them to laptop, only see partial.
>>>>>
>>>>> One time I lost an entire dance photo shoot, and had to call
>>>>> as many dancers as I could for a redo the next day
>>>>> (promotional poster for them).
>>>>>
>>>>> This time it wasn’t as critical, but I’m starting to get
>>>>> worried. Is this something E3 related, or card related, you
>>>>> think?
>>>>>
>>>>> Thanks.
>>>>>
>>>>> /s
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