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p.3 #11 · p.3 #11 · Canon 80D dynamic range: good news! (quick test with RAW images) | |
cgarcia wrote:
IR has just posted some RAW samples.
After a very quick analysis, it seems that fortunately our hopes have finally become true. It seems that ISO 100 achieves about 12.4 stops (13.2 in "DXO notation"), ISO 200 about 11.9 (12.7 in "DXO notation").
I'm not sure about the data because both histograms clip almost at the max value (16383 DN) and seem to start in 512 DN (usually Canon used 2048) . The read noise is 2.87 DN at ISO 100 and 3.995 at ISO 200: indeed a new milestone for Canon.
It seems that Sony will still keep a leadership, but the gap is a lot smaller. The new sensor starts walking into the ISO-less land, and will justify a upgrade for many users. And since Canon improves and refines their sensors on each release, we should only expect even better results in the future.
Now I'll heat my dinner (again!) and will try to do a more complete test later!
...Show more →
Yeah those numbers seem correct if they really did jump the clipping way up to 16383.
I got 2.88 read and 512 base value and didn't try to hunt for clipping value.
normalized DR=Log2((16383-512)/(sqrt(8/24.2)*2.88)=13.2
The banding seems to be essentially 100% zero.
Much better than say 60D results (and vastly compared to 50D which also had tons of banding). Nicely better than a 7D. Better than a 5D2 or 5D3. The best ever sensor tech from Canon I'd suggest.
On the downside, if this is the best they can do after all this time, it's rather disappointing since it's still 1.3-1.6 stops behind what Exmor has already done a couple years ago and around what Nikon had managed in their top like pro sports stuff non-Exmor cameras rather some time ago (but it is cool that they at least match or beat that).
One can hope they have an even better process for 1DX2 or 5D4 or whatnot, but I don't know.
It's a nice improvement and could help real world for sure, but considering that Exmor just barely squeezes in lots of natural lighting high DR scenes, especially like say sunlight streaming into a forest or post storm sunbeams into swirling mists), this new sensor would still be struggling a bit for all those scenes where you wanted a better sensor, although maybe you can get away with it now, just, if in a bit ugly fashion. It sure would have been nice to just to turn to Canon for everything, but unless the 5D4 does better, I'm not quite so sure. For those who do lots of wide DR scene shooting, might still be stuck with a messy Sony+Canon mix or going all Nikon and giving up the awesome Canon lenses and UI, others won't care. But too early to say the FF stuff is not tested or even out or even announced in the 5D4 case.
Anyway, say whatever you want, hate on me for having dared say it's not Exmor level, whatever.. I'm outta here and won't respond to any posts regardless of content.
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