Subject: Re: Cheap SD Cards
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From: PeterN <"peter,newdelete">
Subject: Re: Cheap SD Cards
Date: Sat, 18 Nov 2017 11:48:10 -0500
Organization: NewsGuy - Unlimited Usenet $23.95
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On 11/17/2017 7:25 PM, Savageduck wrote:
> On Nov 17, 2017, PeterN wrote
> (in article<>):
>> 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:
>>>> <>
>>> 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.
> What is a Delkin Black?
> Delkin Black is meaningless, all that tells us is who the manufacturer is.
> What is the actual read/write speed of the card?
> Also, because you have somewhat explained what you were doing with multiple
> exposures, I suspect that this was just a slow card choking on what was being
> fed it, and unable to clear the camera buffer. I have a feeling that if you
> just used it to shoot a single exposure there might be no problem at all. If
> you are going to use a high performance camera, you should use high
> performance cards regardless of how tempting it might be to go the budget
> card route.
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