T
theregoesjb
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any knowledge and/or opinions on how big of a difference there is between the two?
neuroanatomist said:Note that there are two 'flavors' - Digic5 and Digic5+.
The new Digic 5 processor is 6X faster and creates 75% less noise than the Digic 4 processor.
Compared with the predecessor, Canon's DIGIC 4 Image Processor, the Dual DIGIC 5+ Image Processor offers approximately 17x faster processing speed, and feature new algorithms that promote greater noise reduction at higher ISOs.
neuroanatomist said:Note that there are two 'flavors' - Digic5 and Digic5+.
The new Digic 5 processor is 6X faster and creates 75% less noise than the Digic 4 processor.
Compared with the predecessor, Canon's DIGIC 4 Image Processor, the Dual DIGIC 5+ Image Processor offers approximately 17x faster processing speed, and feature new algorithms that promote greater noise reduction at higher ISOs.
Does Canon include in the definition of "DIGIC" the ADC or any analog signal processing chips or does "DIGIC" only refer the digital processor?
gene_can_sing said:I do mostly video and I saw a test clip of the new Canon point and shoot that uses Digic 5. Even this cheap camera had noticeably cleaner video than the current Digic 4 DSLRs. It appeared to have less noise, no moire and overall a more solid video picture.
But I did only see one clip so can't make a clear judgement.
donthasslethehoff said:Anyone with insight on how the new DIGIC chip compares to what Sony just came out with? I've been with Canon since 2005, but frankly, if the new Rebels can't match what Sony can do with phase detection af for video, I may jump ship.
neuroanatomist said:Digic does not include the ADC. But RAW isn't really raw, right? For example, long exposure NR subtracts a dark frame but writes out the RAW image as a single file (and obviously the original data from the shot are modified). Nikon reportedly clips off the bottom 5% of the signal (which is almost all noise anyway) before writing a D3/D300 RAW file, and with long exposure NR also applies a median blur filter that can't be disabled (so astrophotographers have to shut down the camera during dark frame capture as a workaround). Point is, the data are converted from analog to digital, then sent to Digic/Expeed, then sometimes 'cooked' in undisclosed ways before the RAW file is written. So, there could be digital NR being applied to the RAW data to account for some of the improved ISO noise performance of the 1D X, for example.
gene_can_sing said:I do mostly video and I saw a test clip of the new Canon point and shoot that uses Digic 5. Even this cheap camera had noticeably cleaner video than the current Digic 4 DSLRs.
Hmm?neuroanatomist said:Nikon reportedly clips off the bottom 5% of the signal (which is almost all noise anyway)