Discussion in 'Lifestyle' started by 1200mk, Feb 2, 2007.
On a D80, it is compressed raw. I think it's still lossless compression, though.
Compressed like a zip file.
I doubt it's lossy.
damn... does it make a difference?
not with nikon iso performance
No, its compressed, but NOT lossy.
how can it not be lossy if it is compressed?
the high iso on my d80 is pretty good.
It uses a form of Huffman encoding. It's like lossless compression with audio files. Intuitively, doesn't make sense, but isn't technology great?
Same with on my D200. Too many noise nazis around hurr.
It uses some kind of algorithm that will allow it to compress and save the data in a smaller file, but when opened it will return it all to its normal size.
For instance, and this isnt supposed to be a digital example, if you have a sample of numbers and it contains 6 10s and 3 4s and 2 1s, it would look like this:
10, 10, 10, 10, 10, 10, 4, 4, 4, 1, 1
But if I could compress it into:
Its now a lot smaller, but I still know there are 6 10s, 3 4s, and 2 1s.
its comprssed, but when expanded can be exactly as it started and lossless.