voidshatter
Member
Total DR range is related to the highlight details and the SNR in the shadow. When you claim that you get cleaner results at 35 or 50 ISO, you also claim to have more total DR range.?? I have never said that you get better DR below ISO 100 on an IQ260. I said that you get constant DR at ISO 35, 50 and 100 on an IQ180. But you get the best SNR at ISO 35, somewhat less at ISO 50 and even less SNR at ISO 100. So the optimum (base) ISO is 35. Do you dispute any of this? Does comcast?
And I have never referred to the D800E at all - it's irrelevant to this exchange, as it is not using a CCD!
You started this thread with a question about the IQ260. I have answered it as helpfully as I could, based on an intimate knowledge of how CCDs work (I lecture in observational astronomy) and on my own experience as a MFD user. Now seeing as DxO have never tested that back, nor comcast - I don't see a single MFD device listed at comcast -, how can you say that you would trust them over my analysis?
Ray
The data I posted in the OP was the analysis results by comcast (the site owner sent me these by email but haven't updated his site yet).
Can you prove that for the same highlight details, you can get better shadow SNR at 50 ISO, vs 100 ISO? (I believe for the same amount of highlight details, when comparing the SNR in the shadow, 100 ISO is cleaner than 200 ISO, but 50 ISO is not cleaner than 100 ISO.)