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djc djc is offline
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Default Apprentice managed to lose a days pay

On 30/12/12 01:14, John Rumm wrote:
On 29/12/2012 23:16, brass monkey wrote:


I was under the impression that film was equivalent to ~15 megapixels.


Its hard to make comparisons since film does not have pixels as such,
but 15 to 20 is often quoted as an approximation. Having said that,
others claim you would need something like 90MP to fully capture the
detail on a very fine grain film like Velvia for example.


Depends if you are looking at just resolution or also consider dynamic
range etc. Above 12MP you will need a top quality lens to notice much
difference. 25-36MP would be equivalent to a high resolution scan of a
35mm negative, which would probably resolve more film grain than actual
image detail. Film still has the potential to cover a wider dynamic
range. A digital sensor can practically see in the dark.


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djc