MikeRichards wrote:
That is a RAW shot converted via LR with no changes to anything! Its too noisy! I don't expect it to be really sharp, I mean it is f1.2 but the noise is driving me NUTS!
I think everyone is looking at the HIGH ISO performance and neglecting the low ISO.
Agreed. It looks too noisy for ISO320 when nothing is done to the exposure in PP. I mean, it isn't hugely underexposed and all. Maybe it will become better when the official ACR/LR 7D support is released?
Replying to the photo of the little girl. That photo has the look of a focus calibration problem. What we are seeing is softness not noise. When you shoot at 1.2 focus becomes a big issue and the lens will need to be microcalibrated with your AF adjustment. I think that is problem with the photo.
Jeff Kingston wrote:
Replying to the photo of the little girl. That photo has the look of a focus calibration problem. What we are seeing is softness not noise. When you shoot at 1.2 focus becomes a big issue and the lens will need to be microcalibrated with your AF adjustment. I think that is problem with the photo.
Noise will show regardless of focus. Look at the facial shadows... there is noise/grain. Besides that, focus/sharpness seems fine for f/1.2 on a 18MP sensor (when viewed 100%).
I don't think it's noise, it's rather a bad, granular, RAW conversion of a very smooth shadow gradient. I think, LR is not yet up to speed with the 7D RAW files. Try shooting jpeg or apply DPP.
ganderhead wrote:
as the press / web donīt seem to have published a direct comparison, does any of you have real world experience with both of these cams, especially in regard to AF performace (speed, precision, tracking)?
A friend of mine has the 40D and have extensively used the D300. His initial impression is that the 7D have about 25% more in-focus shots than either. If you can read Hebrew, here is the link.
So, I am going to put up a couple of shots in a minute but I went out and shot two images, exactly the same shot, nothing changed but the file format. The jpg was MUCH cleaner than the RAW file. I wonder if that is something to do with LR or what but I was fairly happy with the results from the jpg.
gfiksel wrote:
I don't think it's noise, it's rather a bad, granular, RAW conversion of a very smooth shadow gradient. I think, LR is not yet up to speed with the 7D RAW files. Try shooting jpeg or apply DPP.
I think it's more about the conversion software than the camera too.
I've been processing 7D files from various sources in Raw Therapee or Capture One 4 (by DNGing them first) or natively in Lightroom: mainly at higher ISOs admittedly, but also at lower ISOs, and I've been impressed by the conversions.
Mind you, I really don't rate DPP - I don't really buy the "Canon know its files best" argument (they should, but I don't see it in what comes out of DPP! ) and I seem to get nicer 7D results from the converters above than I've seen people post up from DPP - and way better than what ACR currently spits out, even though it has the same RAW engine as Lr, which as I say, isn't half bad.
Certainly I'm not at all phased by the noise in the samples I've seen here so far, because I'm confident that smart converter and processing decisions will make this an entirely manageable issue.
gfiksel wrote:
I don't think it's noise, it's rather a bad, granular, RAW conversion of a very smooth shadow gradient. I think, LR is not yet up to speed with the 7D RAW files. Try shooting jpeg or apply DPP.
+1
Note how, more often than not, the "noise grain" is vertically oriented.
The 7D seems to have a problem with banding, that will affect raw converters that don't compensate for it. If the banding is not only present in deep shadows, it may in fact be mismatched gains of the various readout channels, and so would affect all tonal ranges.
I was testing a 200/2.8L right now, so i tried with 1600, 3200 and 6400 ISO
no tripod, handshot, DPP at 0 settings everywhere, NO NR or whatever, only conversion and resizing at 1024x. All @f 2.8
1600 ISO
3200ISO
6400ISO
crop at 6400ISO - PLS note focus was not here, just put this crop to show shadow
I am really not able to judge these pics as I never shoot over 4-800 ISO, but if it may of any help to someone of you...and yes I know it is not a professional test but it could happen to take a shot in these condition.....
) and I seem to get nicer 7D results from the converters above than I've seen people post up from DPP - and way better than what ACR currently spits out, even though it has the same RAW engine as Lr, which as I say, isn't half bad.
