Cheap SD Cards

Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images. Magenta, purple and blue. The
weird colors did not show up when being viewed in Windows explorer, but
were evident in LR. The strange colors did not show up in Bridge, unless
I opened the image in ACR. The weird colors were quite evident in the
On1 browser and in Capture NXD. I must add that more weird colored
images showed up when viewed in the On1 browser, than with any other
method. My conclusion is that the corruption was caused by a bad card.
I am not interested in placing blame. I am interested in the problem not
recurring. For the first time since I've been shooting digital, I used a
card other than Lexar or Sandisk. Fortunately, those shots were just
intended to be background sky shots, so i had no real loss. It is
however the first time I have had files that were corrupted. I am
writing this to blow off some steam, and remind others who may have been
getting away with using cheap cards, that they have been lucky.


--
PeterN

On Nov 16, 2017, PeterN wrote
(in article ):


Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images.

That shouldn’t be a problem for you. weird colors in unusual portions of
the images should be right in your wheelhouse. ;-)

Magenta, purple and blue. The
weird colors did not show up when being viewed in Windows explorer, but
were evident in LR. The strange colors did not show up in Bridge, unless
I opened the image in ACR. The weird colors were quite evident in the
On1 browser and in Capture NXD. I must add that more weird colored
images showed up when viewed in the On1 browser, than with any other
method. My conclusion is that the corruption was caused by a bad card.
I am not interested in placing blame. I am interested in the problem not
recurring. For the first time since I've been shooting digital, I used a
card other than Lexar or Sandisk. Fortunately, those shots were just
intended to be background sky shots, so i had no real loss. It is
however the first time I have had files that were corrupted. I am
writing this to blow off some steam, and remind others who may have been
getting away with using cheap cards, that they have been lucky.

Yup! I stick to Sandisk and Lexar, and in recent months with reports of
corruption issues with Lexar CF & SD cards, and reports that they are not
doing well as a business, I am now only buying Sandisk cards.

https://www.dpreview.com/news/3111535898

I have not experienced any corruption issues with either brand, but with one
Lexar 32GB 300MB/s SDHC UHS-II/U3 the lock slider was displaced on
re-inserting it into my X-T2. That effectively turned it into a read only
card which, after much trying, proved to be unrepairable. So that was a $65
card down the tubes. I still have one more of those, and four Lexar 32GB
150MB/s SDHC cards along with a whole bunch of Lexar CF cards.

All my other CF cards are Sandisk, and I have just bought 2 more Sandisk
Extreme Pro 32GB 300MB/s SDHC UHS-II U3 cards.

--

Regards,
Savageduck

On Thu, 16 Nov 2017 19:50:30 -0800, Savageduck wrote:


I have not experienced any corruption issues with either brand, but with one
Lexar 32GB 300MB/s SDHC UHS-II/U3 the lock slider was displaced on
re-inserting it into my X-T2. That effectively turned it into a read only
card which, after much trying, proved to be unrepairable. So that was a $65
card down the tubes.

I had that happen on a card a few years back, and found info on the web, telling me that the
tiny lock slider, when in read mode, is just filling a space. Apparently, the camera has a
"feeler", checking to see if it can drop into that space or not. If not, it's a R/W card! So
I carefully put some epoxy in that space, and am still using the card. I just can't use the
lock.

--
croy

On Nov 17, 2017, croy wrote
(in ):

On Thu, 16 Nov 2017 19:50:30 -0800,
wrote:

I have not experienced any corruption issues with either brand, but with one
Lexar 32GB 300MB/s SDHC UHS-II/U3 the lock slider was displaced on
re-inserting it into my X-T2. That effectively turned it into a read only
card which, after much trying, proved to be unrepairable. So that was a $65
card down the tubes.

I had that happen on a card a few years back, and found info on the web,
telling me that the tiny lock slider, when in read mode, is just filling a space. Apparently, the
camera has a "feeler", checking to see if it can drop into that space or not. If not, it's
a R/W card! So I carefully put some epoxy in that space, and am still using the card. I just
can't use the lock.

Interesting. I will give that a try, it is a case of having nothing to lose,
just another 32GB SD card to gain.

Thanks.

--

Regards,
Savageduck

On Nov 17, 2017, Savageduck wrote
(in iganews.com):

On Nov 17, 2017, croy wrote
(in ):

On Thu, 16 Nov 2017 19:50:30 -0800,
wrote:

I have not experienced any corruption issues with either brand, but with
one
Lexar 32GB 300MB/s SDHC UHS-II/U3 the lock slider was displaced on
re-inserting it into my X-T2. That effectively turned it into a read only
card which, after much trying, proved to be unrepairable. So that was a $65
card down the tubes.

I had that happen on a card a few years back, and found info on the web,
telling me that the tiny lock slider, when in read mode, is just filling a
space. Apparently, the camera has a "feeler", checking to see if it can drop into that space or
not. If not, it’s a R/W card! So I carefully put some epoxy in that space, and am still using
the card. I just can't use the lock.

Interesting. I will give that a try, it is a case of having nothing to lose,
just another 32GB SD card to gain.

Thanks.

Just to report back, I tried your suggestion, and IT WORKS!

https://www.dropbox.com/s/vhvo3cj3sm9f03i/IMG_2389.jpg

https://www.dropbox.com/s/9hkktmky5vztu86/IMG_2390.jpg

Thank you.

So it is a 32GB card saved, and I will be able to at least use it if needed.
Fortunately I have a good supply of fast 32GB SDHC cards.

--

Regards,
Savageduck

On 11/16/2017 10:50 PM, Savageduck wrote:
On Nov 16, 2017, PeterN wrote
(in article ):


Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images.

That shouldn’t be a problem for you. weird colors in unusual portions of
the images should be right in your wheelhouse. ;-)

Not like this:
https://www.dropbox.com/s/4n3mlqf07qwmt10/_DSC7524.NEF?dl=0

And, yes. I know my sensor needs cleaning.

Magenta, purple and blue. The
weird colors did not show up when being viewed in Windows explorer, but
were evident in LR. The strange colors did not show up in Bridge, unless
I opened the image in ACR. The weird colors were quite evident in the
On1 browser and in Capture NXD. I must add that more weird colored
images showed up when viewed in the On1 browser, than with any other
method. My conclusion is that the corruption was caused by a bad card.
I am not interested in placing blame. I am interested in the problem not
recurring. For the first time since I've been shooting digital, I used a
card other than Lexar or Sandisk. Fortunately, those shots were just
intended to be background sky shots, so i had no real loss. It is
however the first time I have had files that were corrupted. I am
writing this to blow off some steam, and remind others who may have been
getting away with using cheap cards, that they have been lucky.

Yup! I stick to Sandisk and Lexar, and in recent months with reports of
corruption issues with Lexar CF & SD cards, and reports that they are not
doing well as a business, I am now only buying Sandisk cards.

https://www.dpreview.com/news/3111535898

I have not experienced any corruption issues with either brand, but with one
Lexar 32GB 300MB/s SDHC UHS-II/U3 the lock slider was displaced on
re-inserting it into my X-T2. That effectively turned it into a read only
card which, after much trying, proved to be unrepairable. So that was a $65
card down the tubes. I still have one more of those, and four Lexar 32GB
150MB/s SDHC cards along with a whole bunch of Lexar CF cards.

All my other CF cards are Sandisk, and I have just bought 2 more Sandisk
Extreme Pro 32GB 300MB/s SDHC UHS-II U3 cards.



--
PeterN

On Nov 17, 2017, PeterN wrote
(in article ):

On 11/16/2017 10:50 PM, Savageduck wrote:
On Nov 16, 2017, PeterN wrote
(in article ):


Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images.

That shouldn’t be a problem for you. weird colors in unusual portions of
the images should be right in your wheelhouse. ;-)

Not like this:
https://www.dropbox.com/s/4n3mlqf07qwmt10/_DSC7524.NEF?dl=0

Yup! That looks like a corrupt file issue. As to where that corruption is
happening one can best surmise that it was the card. However, there can be
all sorts of causes, mostly due to current, clearing the buffer, and writing
issues. So it would be best to run a check with a known good performing card
to eliminate possible issues with the camera.

What was the brand of the card in question, what was its rating, and which
camera were you using?


And, yes. I know my sensor needs cleaning.

So you noticed?


Magenta, purple and blue. The
weird colors did not show up when being viewed in Windows explorer, but
were evident in LR. The strange colors did not show up in Bridge, unless
I opened the image in ACR. The weird colors were quite evident in the
On1 browser and in Capture NXD. I must add that more weird colored
images showed up when viewed in the On1 browser, than with any other
method. My conclusion is that the corruption was caused by a bad card.
I am not interested in placing blame. I am interested in the problem not
recurring. For the first time since I've been shooting digital, I used a
card other than Lexar or Sandisk. Fortunately, those shots were just
intended to be background sky shots, so i had no real loss. It is
however the first time I have had files that were corrupted. I am
writing this to blow off some steam, and remind others who may have been
getting away with using cheap cards, that they have been lucky.

Yup! I stick to Sandisk and Lexar, and in recent months with reports of
corruption issues with Lexar CF & SD cards, and reports that they are not
doing well as a business, I am now only buying Sandisk cards.

https://www.dpreview.com/news/3111535898

I have not experienced any corruption issues with either brand, but with one
Lexar 32GB 300MB/s SDHC UHS-II/U3 the lock slider was displaced on
re-inserting it into my X-T2. That effectively turned it into a read only
card which, after much trying, proved to be unrepairable. So that was a $65
card down the tubes. I still have one more of those, and four Lexar 32GB
150MB/s SDHC cards along with a whole bunch of Lexar CF cards.

All my other CF cards are Sandisk, and I have just bought 2 more Sandisk
Extreme Pro 32GB 300MB/s SDHC UHS-II U3 cards.

--

Regards,
Savageduck

On 11/17/2017 11:56 AM, Savageduck wrote:
On Nov 17, 2017, PeterN wrote
(in article ):

On 11/16/2017 10:50 PM, Savageduck wrote:
On Nov 16, 2017, PeterN wrote
(in article ):


Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images.

That shouldn’t be a problem for you. weird colors in unusual portions of
the images should be right in your wheelhouse. ;-)

Not like this:
https://www.dropbox.com/s/4n3mlqf07qwmt10/_DSC7524.NEF?dl=0

Yup! That looks like a corrupt file issue. As to where that corruption is
happening one can best surmise that it was the card. However, there can be
all sorts of causes, mostly due to current, clearing the buffer, and writing
issues. So it would be best to run a check with a known good performing card
to eliminate possible issues with the camera.

What was the brand of the card in question, what was its rating, and which
camera were you using?

D800, and a Delkin Black. I complained to Delkin. They are sending me a
reader, and requested that I test the card with that reader. The shot
you see is a ten shot multiple exposure. I was testing to see how much
time was needed between shots, to get a similar effect to a long
exposure. despite the corruption, my conclusion is that it can be done.
In a calm bay it takes about 2.5 seconds between each shot, for a ten
shot exposure.

--
PeterN

On Fri, 17 Nov 2017 12:33:18 -0500, PeterN
wrote:

On 11/17/2017 11:56 AM, Savageduck wrote:
On Nov 17, 2017, PeterN wrote
(in article ):

On 11/16/2017 10:50 PM, Savageduck wrote:
On Nov 16, 2017, PeterN wrote
(in article ):


Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images.

That shouldn’t be a problem for you. weird colors in unusual portions of
the images should be right in your wheelhouse. ;-)

Not like this:
https://www.dropbox.com/s/4n3mlqf07qwmt10/_DSC7524.NEF?dl=0

Yup! That looks like a corrupt file issue. As to where that corruption is
happening one can best surmise that it was the card. However, there can be
all sorts of causes, mostly due to current, clearing the buffer, and writing
issues. So it would be best to run a check with a known good performing card
to eliminate possible issues with the camera.

What was the brand of the card in question, what was its rating, and which
camera were you using?

D800, and a Delkin Black. I complained to Delkin. They are sending me a
reader, and requested that I test the card with that reader. The shot
you see is a ten shot multiple exposure. I was testing to see how much
time was needed between shots, to get a similar effect to a long
exposure. despite the corruption, my conclusion is that it can be done.
In a calm bay it takes about 2.5 seconds between each shot, for a ten
shot exposure.

I tried a variation of that some years ago on the D300. The camera had
the ability to make multiple exposures into the one image file and I
tried this as a means of smoothing out surf. Technically it worked but
it wasn't a succesful image so I dumped it. I can't now remember the
details of what I did.
--

Regards,

Eric Stevens

On Fri, 17 Nov 2017 12:33:18 -0500, PeterN
wrote:

On 11/17/2017 11:56 AM, Savageduck wrote:
On Nov 17, 2017, PeterN wrote
(in article ):

On 11/16/2017 10:50 PM, Savageduck wrote:
On Nov 16, 2017, PeterN wrote
(in article ):


Sunday I did a quick sunset shoot. Out of 46 images, several had weird
colors in unusual portions of the images.

That shouldn’t be a problem for you. weird colors in unusual portions of
the images should be right in your wheelhouse. ;-)

Not like this:
https://www.dropbox.com/s/4n3mlqf07qwmt10/_DSC7524.NEF?dl=0

Yup! That looks like a corrupt file issue. As to where that corruption is
happening one can best surmise that it was the card. However, there can be
all sorts of causes, mostly due to current, clearing the buffer, and writing
issues. So it would be best to run a check with a known good performing card
to eliminate possible issues with the camera.

What was the brand of the card in question, what was its rating, and which
camera were you using?

D800, and a Delkin Black. I complained to Delkin. They are sending me a
reader, and requested that I test the card with that reader. The shot
you see is a ten shot multiple exposure. I was testing to see how much
time was needed between shots, to get a similar effect to a long
exposure. despite the corruption, my conclusion is that it can be done.
In a calm bay it takes about 2.5 seconds between each shot, for a ten
shot exposure.

Were all of the corrupted files multiple exposure? I would consider
the possibility that you are seeing an artifact of that process, and
not a bad card.