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Re: 35mm film VS digital

 
 
measekite
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      08-29-2008


John McWilliams wrote:
> Floyd L. Davidson wrote:
>> "danny" <(E-Mail Removed)> wrote:
>>> Film is still better than digital. You can scan film negatives at
>>> 9600 DPI.
>>> Most digital cameras only give you 72 DPI.
>>>
>>> I ask you... Which would you rather have... 9600 DPI or 72 DPI?
>>> The answer
>>> is pretty obvious.

>>
>> The scanned 9600 DPI image will not have better resolution than
>> the negative, and the 35mm negative doesn't have as much
>> resolution as a modern 35mm sized electronic sensor.
>>
>> Further, the DPI resolution listed in the Exif data on digital
>> cameras has no relationship to image resolution. It only a way
>> to automatically determine a size for printing (by dividing the
>> pixel dimensions by the DPI value), but it is usually ignored.
>>
>> If you would like I can produce an image from a Nikon D3 (which
>> natively puts "300" in the Exif data for X and Y resolution)
>> that has been changed to 100,000 DPI. It will still be exactly
>> the same image though... and technically (with 4288 pixels
>> across on a 1.42" wide sensor) is about 3020 DPI, but of course
>> just as the film negative does not have that much resolution,
>> neither does the image recorded by the electronic sensor.

>
> You'd have sounded a bit more authoritative if you'd have used the
> correct term in the last paragraph, "PPI".


There is the critic with a wasted post.
 
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measekite
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      08-29-2008


Floyd L. Davidson wrote:
> John McWilliams <(E-Mail Removed)> wrote:
>
>> Floyd L. Davidson wrote:
>>
>>> "danny" <(E-Mail Removed)> wrote:
>>>
>>>> Film is still better than digital. You can scan film negatives at 9600 DPI.
>>>> Most digital cameras only give you 72 DPI.
>>>>
>>>> I ask you... Which would you rather have... 9600 DPI or 72 DPI? The answer
>>>> is pretty obvious.
>>>>
>>> The scanned 9600 DPI image will not have better
>>> resolution than
>>> the negative, and the 35mm negative doesn't have as much
>>> resolution as a modern 35mm sized electronic sensor.
>>> Further, the DPI resolution listed in the Exif data on
>>> digital
>>> cameras has no relationship to image resolution. It only a way
>>> to automatically determine a size for printing (by dividing the
>>> pixel dimensions by the DPI value), but it is usually ignored.
>>> If you would like I can produce an image from a Nikon
>>> D3 (which
>>> natively puts "300" in the Exif data for X and Y resolution)
>>> that has been changed to 100,000 DPI. It will still be exactly
>>> the same image though... and technically (with 4288 pixels
>>> across on a 1.42" wide sensor) is about 3020 DPI, but of course
>>> just as the film negative does not have that much resolution,
>>> neither does the image recorded by the electronic sensor.
>>>

>> You'd have sounded a bit more authoritative if you'd have used the
>> correct term in the last paragraph, "PPI".
>>

>
> Who cares? (Incidentally, PPI is not correct for the sensor either!)
>


You tell him. Nobody cares.
 
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