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p.7 #15 · p.7 #15 · Canon 80D dynamic range: good news! (quick test with RAW images) | |
OK, it's quick and ugly, and not very well-controlled.
I initially attempted to compare the 7D2 and 80D outdoors, but with variable cloudiness and high winds, it wasn't going to give me the constant conditions I needed to make the comparison. So, I ventured downstairs to the trusty old pool table instead. Granted, it's not the esteemed brick wall, but it's something!!
Before I carry on too far, I will say that there are some flaws in my comparison. I didn't use a gray card, so the color is somewhat different, despite having used duplicate settings in DPP to process the images. The NR was set the same on both, matching the default standard for ISO 100 on the 80D, 0.2 LUM and 2.0 CHROM.
Both images were set, hastily, to Neutral picture style, and the WB was set to "White Fluorescent Light", which was the closest to actual colors. Had I planned things out, I'd have used a gray card - the lighting is a mix of fluorescent wall sconces, and soft-white LED lighting over the pool table.
Anyway, I used manual settings, matched the exposures for both bodies at f/2.8, ISO 100, and 1/320 second exposure, which is 4 stops below what is deemed "normal" by the camera's metering (both were the same, more or less). I then "pushed" the exposure 3 stops in post (I had forgotten that I could only go 3 stops in DPP), then boosted the shadows the full +5.
The results are below. Pay particular attention to the CHROMA noise difference. While the 7D2's colors are off, I didn't try to change anything that would make the process any different for the 2 bodies. I know that the white balance could have been better, though the 80D is pretty close in terms of colors.
Like I said, my test parameters are a little sloppy, but I think it shows the significant improvement in shadow noise, at least at low ISO settings.

Full Image, as taken by the 80D. Yes, it's underexposed. See text above.

Crop of cue ball, 7D2. Approximately 75% crop.

Crop of cue ball, 80D

Crop of chalk, 7D2

Crop of chalk, 80D
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